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Hadrons: archiving unmaintained or exotic modules

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Antonin Portelli
2019-02-04 21:23:30 +00:00
parent 3692c7f1ef
commit 6b46834af8
21 changed files with 7 additions and 251 deletions
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Hadrons/Archive/Modules/ScalarVP.cc Normal file
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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MScalar/ScalarVP.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: James Harrison <jch1g10@soton.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MScalar/ChargedProp.hpp>
#include <Hadrons/Modules/MScalar/ScalarVP.hpp>
#include <Hadrons/Modules/MScalar/Scalar.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MScalar;
/*
* Scalar QED vacuum polarisation up to O(alpha)
*
* Conserved vector 2-point function diagram notation:
* _______
* / \
* U_nu * * U_mu
* \_______/
*
* ( adj(S(a\hat{nu}|x)) U_mu(x) S(0|x+a\hat{mu}) U_nu(0) )
* = 2 Re( - )
* ( adj(S(a\hat{nu}|x+a\hat{mu})) adj(U_mu(x)) S(0|x) U_nu(0) )
*
*
* _______
* / \
* free = 1 * * 1
* \_______/
*
*
*
* _______
* / \
* S = iA_nu * * iA_mu
* \_______/
*
*
* Delta_1
* ___*___
* / \
* X = 1 * * 1
* \___*___/
* Delta_1
*
* Delta_1 Delta_1
* ___*___ ___*___
* / \ / \
* 1 * * iA_mu + iA_nu * * 1
* \_______/ \_______/
* 4C = _______ _______
* / \ / \
* + 1 * * iA_mu + iA_nu * * 1
* \___*___/ \___*___/
* Delta_1 Delta_1
*
* Delta_1 Delta_1
* _*___*_ _______
* / \ / \
* 2E = 1 * * 1 + 1 * * 1
* \_______/ \_*___*_/
* Delta_1 Delta_1
*
* Delta_2
* ___*___ _______
* / \ / \
* 2T = 1 * * 1 + 1 * * 1
* \_______/ \___*___/
* Delta_2
*
*
* _______
* / \
* srcT = -A_nu^2/2 * * 1
* \_______/
*
*
*
* _______
* / \
* snkT = 1 * * -A_mu^2/2
* \_______/
*
* Full VP to O(alpha) = free + q^2*(S+X+4C+2E+2T+srcT+snkT)
*/
/******************************************************************************
* TScalarVP implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
TScalarVP::TScalarVP(const std::string name)
: Module<ScalarVPPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
std::vector<std::string> TScalarVP::getInput(void)
{
prop0Name_ = par().scalarProp + "_0";
propQName_ = par().scalarProp + "_Q";
propSunName_ = par().scalarProp + "_Sun";
propTadName_ = par().scalarProp + "_Tad";
std::vector<std::string> in = {par().emField, prop0Name_, propQName_,
propSunName_, propTadName_};
return in;
}
std::vector<std::string> TScalarVP::getOutput(void)
{
std::vector<std::string> out;
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
// out.push_back(getName() + "_propQ_" + std::to_string(mu));
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
out.push_back(getName() + "_" + std::to_string(mu)
+ "_" + std::to_string(nu));
}
}
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TScalarVP::setup(void)
{
freeMomPropName_ = FREEMOMPROP(static_cast<TChargedProp *>(vm().getModule(par().scalarProp))->par().mass);
GFSrcName_ = par().scalarProp + "_DinvSrc";
fftName_ = par().scalarProp + "_fft";
phaseName_.clear();
muPropQName_.clear();
vpTensorName_.clear();
momPhaseName_.clear();
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
phaseName_.push_back("_shiftphase_" + std::to_string(mu));
muPropQName_.push_back(getName() + "_propQ_" + std::to_string(mu));
std::vector<std::string> vpTensorName_mu;
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
vpTensorName_mu.push_back(getName() + "_" + std::to_string(mu)
+ "_" + std::to_string(nu));
}
vpTensorName_.push_back(vpTensorName_mu);
}
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
momPhaseName_.push_back("_momentumphase_" + std::to_string(i_p));
}
}
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
envCreateLat(ScalarField, muPropQName_[mu]);
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
envCreateLat(ScalarField, vpTensorName_[mu][nu]);
}
}
if (!par().output.empty())
{
momPhasesDone_ = env().hasCreatedObject(momPhaseName_[0]);
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
envCacheLat(ScalarField, momPhaseName_[i_p]);
}
}
envTmpLat(ScalarField, "buf");
envTmpLat(ScalarField, "result");
envTmpLat(ScalarField, "Amu");
envTmpLat(ScalarField, "Usnk");
envTmpLat(ScalarField, "tmpProp");
}
// execution ///////////////////////////////////////////////////////////////////
void TScalarVP::execute(void)
{
// CACHING ANALYTIC EXPRESSIONS
makeCaches();
Complex ci(0.0,1.0);
Real q = static_cast<TChargedProp *>(vm().getModule(par().scalarProp))->par().charge;
auto &prop0 = envGet(ScalarField, prop0Name_);
auto &propQ = envGet(ScalarField, propQName_);
auto &propSun = envGet(ScalarField, propSunName_);
auto &propTad = envGet(ScalarField, propTadName_);
auto &GFSrc = envGet(ScalarField, GFSrcName_);
auto &G = envGet(ScalarField, freeMomPropName_);
auto &fft = envGet(FFT, fftName_);
phase_.clear();
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
auto &phmu = envGet(ScalarField, phaseName_[mu]);
phase_.push_back(&phmu);
}
// PROPAGATORS FROM SHIFTED SOURCES
LOG(Message) << "Computing O(q) charged scalar propagators..."
<< std::endl;
std::vector<ScalarField *> muPropQ;
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
auto &propmu = envGet(ScalarField, muPropQName_[mu]);
// -G*momD1*G*F*tau_mu*Src (momD1 = F*D1*Finv)
propmu = adj(*phase_[mu])*GFSrc;
momD1(propmu, fft);
propmu = -G*propmu;
fft.FFT_all_dim(propmu, propmu, FFT::backward);
muPropQ.push_back(&propmu);
}
// CONTRACTIONS
auto &A = envGet(EmField, par().emField);
envGetTmp(ScalarField, buf);
envGetTmp(ScalarField, result);
envGetTmp(ScalarField, Amu);
envGetTmp(ScalarField, Usnk);
envGetTmp(ScalarField, tmpProp);
TComplex Anu0, Usrc;
std::vector<int> coor0 = {0, 0, 0, 0};
std::vector<std::vector<ScalarField *> > vpTensor;
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
std::vector<ScalarField *> vpTensor_mu;
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
auto &vpmunu = envGet(ScalarField, vpTensorName_[mu][nu]);
vpTensor_mu.push_back(&vpmunu);
}
vpTensor.push_back(vpTensor_mu);
}
// Prepare output data structure if necessary
Result outputData;
if (!par().output.empty())
{
outputData.projection.resize(par().outputMom.size());
outputData.lattice_size = env().getGrid()->_fdimensions;
outputData.mass = static_cast<TChargedProp *>(vm().getModule(par().scalarProp))->par().mass;
outputData.charge = q;
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
outputData.projection[i_p].momentum = strToVec<int>(par().outputMom[i_p]);
outputData.projection[i_p].pi.resize(env().getNd());
outputData.projection[i_p].pi_free.resize(env().getNd());
outputData.projection[i_p].pi_2E.resize(env().getNd());
outputData.projection[i_p].pi_2T.resize(env().getNd());
outputData.projection[i_p].pi_S.resize(env().getNd());
outputData.projection[i_p].pi_4C.resize(env().getNd());
outputData.projection[i_p].pi_X.resize(env().getNd());
outputData.projection[i_p].pi_srcT.resize(env().getNd());
outputData.projection[i_p].pi_snkT.resize(env().getNd());
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
outputData.projection[i_p].pi[nu].resize(env().getNd());
outputData.projection[i_p].pi_free[nu].resize(env().getNd());
outputData.projection[i_p].pi_2E[nu].resize(env().getNd());
outputData.projection[i_p].pi_2T[nu].resize(env().getNd());
outputData.projection[i_p].pi_S[nu].resize(env().getNd());
outputData.projection[i_p].pi_4C[nu].resize(env().getNd());
outputData.projection[i_p].pi_X[nu].resize(env().getNd());
outputData.projection[i_p].pi_srcT[nu].resize(env().getNd());
outputData.projection[i_p].pi_snkT[nu].resize(env().getNd());
}
}
}
// Do contractions
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
peekSite(Anu0, peekLorentz(A, nu), coor0);
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
LOG(Message) << "Computing Pi[" << mu << "][" << nu << "]..."
<< std::endl;
Amu = peekLorentz(A, mu);
// free
tmpProp = Cshift(prop0, nu, -1); // S_0(0|x-a\hat{\nu})
// = S_0(a\hat{\nu}|x)
Usrc = Complex(1.0,0.0);
vpContraction(result, prop0, tmpProp, Usrc, mu);
*vpTensor[mu][nu] = result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_free[mu][nu], result,
i_p);
}
}
tmpProp = result; // Just using tmpProp as a temporary ScalarField
// here (buf is modified by calls to writeVP())
// srcT
result = tmpProp * (-0.5)*Anu0*Anu0;
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_srcT[mu][nu], result,
i_p);
}
}
// snkT
result = tmpProp * (-0.5)*Amu*Amu;
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_snkT[mu][nu], result,
i_p);
}
}
// S
tmpProp = Cshift(prop0, nu, -1); // S_0(a\hat{\nu}|x)
Usrc = ci*Anu0;
Usnk = ci*Amu;
vpContraction(result, prop0, tmpProp, Usrc, Usnk, mu);
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_S[mu][nu], result,
i_p);
}
}
// 4C
tmpProp = Cshift(prop0, nu, -1); // S_0(a\hat{\nu}|x)
Usrc = Complex(1.0,0.0);
Usnk = ci*Amu;
vpContraction(result, propQ, tmpProp, Usrc, Usnk, mu);
Usrc = ci*Anu0;
vpContraction(buf, propQ, tmpProp, Usrc, mu);
result += buf;
vpContraction(buf, prop0, *muPropQ[nu], Usrc, mu);
result += buf;
Usrc = Complex(1.0,0.0);
Usnk = ci*Amu;
vpContraction(buf, prop0, *muPropQ[nu], Usrc, Usnk, mu);
result += buf;
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_4C[mu][nu], result,
i_p);
}
}
// X
Usrc = Complex(1.0,0.0);
vpContraction(result, propQ, *muPropQ[nu], Usrc, mu);
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_X[mu][nu], result,
i_p);
}
}
// 2E
tmpProp = Cshift(prop0, nu, -1); // S_0(a\hat{\nu}|x)
Usrc = Complex(1.0,0.0);
vpContraction(result, propSun, tmpProp, Usrc, mu);
tmpProp = Cshift(propSun, nu, -1); // S_\Sigma(0|x-a\hat{\nu})
//(Note: <S(0|x-a\hat{\nu})> = <S(a\hat{\nu}|x)>)
vpContraction(buf, prop0, tmpProp, Usrc, mu);
result += buf;
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_2E[mu][nu], result,
i_p);
}
}
// 2T
tmpProp = Cshift(prop0, nu, -1); // S_0(a\hat{\nu}|x)
Usrc = Complex(1.0,0.0);
vpContraction(result, propTad, tmpProp, Usrc, mu);
tmpProp = Cshift(propTad, nu, -1); // S_T(0|x-a\hat{\nu})
vpContraction(buf, prop0, tmpProp, Usrc, mu);
result += buf;
*vpTensor[mu][nu] += q*q*result;
// Do momentum projections if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi_2T[mu][nu], result,
i_p);
}
}
// Do momentum projections of full VP if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pi[mu][nu],
*vpTensor[mu][nu], i_p);
}
}
}
}
// OUTPUT IF NECESSARY
if (!par().output.empty())
{
LOG(Message) << "Saving momentum-projected HVP to '"
<< RESULT_FILE_NAME(par().output, vm().getTrajectory()) << "'..."
<< std::endl;
saveResult(par().output, "HVP", outputData);
}
}
void TScalarVP::makeCaches(void)
{
envGetTmp(ScalarField, buf);
if ( (!par().output.empty()) && (!momPhasesDone_) )
{
LOG(Message) << "Caching phases for momentum projections..."
<< std::endl;
std::vector<int> &l = env().getGrid()->_fdimensions;
Complex ci(0.0,1.0);
// Calculate phase factors
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
std::vector<int> mom = strToVec<int>(par().outputMom[i_p]);
auto &momph_ip = envGet(ScalarField, momPhaseName_[i_p]);
momph_ip = zero;
for (unsigned int j = 0; j < env().getNd()-1; ++j)
{
Real twoPiL = M_PI*2./l[j];
LatticeCoordinate(buf, j);
buf = mom[j]*twoPiL*buf;
momph_ip = momph_ip + buf;
}
momph_ip = exp(-ci*momph_ip);
momPhase_.push_back(&momph_ip);
}
}
}
void TScalarVP::vpContraction(ScalarField &vp,
ScalarField &prop_0_x, ScalarField &prop_nu_x,
TComplex u_src, ScalarField &u_snk, int mu)
{
// Note: this function assumes a point source is used.
vp = adj(prop_nu_x) * u_snk * Cshift(prop_0_x, mu, 1) * u_src;
vp -= Cshift(adj(prop_nu_x), mu, 1) * adj(u_snk) * prop_0_x * u_src;
vp = 2.0*real(vp);
}
void TScalarVP::vpContraction(ScalarField &vp,
ScalarField &prop_0_x, ScalarField &prop_nu_x,
TComplex u_src, int mu)
{
// Note: this function assumes a point source is used.
vp = adj(prop_nu_x) * Cshift(prop_0_x, mu, 1) * u_src;
vp -= Cshift(adj(prop_nu_x), mu, 1) * prop_0_x * u_src;
vp = 2.0*real(vp);
}
void TScalarVP::project(std::vector<Complex> &projection, const ScalarField &vp, int i_p)
{
std::vector<TComplex> vecBuf;
envGetTmp(ScalarField, buf);
buf = vp*(*momPhase_[i_p]);
sliceSum(buf, vecBuf, Tp);
projection.resize(vecBuf.size());
for (unsigned int t = 0; t < vecBuf.size(); ++t)
{
projection[t] = TensorRemove(vecBuf[t]);
}
}
void TScalarVP::momD1(ScalarField &s, FFT &fft)
{
auto &A = envGet(EmField, par().emField);
Complex ci(0.0,1.0);
envGetTmp(ScalarField, buf);
envGetTmp(ScalarField, result);
envGetTmp(ScalarField, Amu);
result = zero;
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
Amu = peekLorentz(A, mu);
buf = (*phase_[mu])*s;
fft.FFT_all_dim(buf, buf, FFT::backward);
buf = Amu*buf;
fft.FFT_all_dim(buf, buf, FFT::forward);
result = result - ci*buf;
}
fft.FFT_all_dim(s, s, FFT::backward);
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
Amu = peekLorentz(A, mu);
buf = Amu*s;
fft.FFT_all_dim(buf, buf, FFT::forward);
result = result + ci*adj(*phase_[mu])*buf;
}
s = result;
}

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MScalar/ScalarVP.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: James Harrison <jch1g10@soton.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MScalar_ScalarVP_hpp_
#define Hadrons_MScalar_ScalarVP_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* Scalar vacuum polarisation *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MScalar)
class ScalarVPPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(ScalarVPPar,
std::string, emField,
std::string, scalarProp,
std::string, output,
std::vector<std::string>, outputMom);
};
class TScalarVP: public Module<ScalarVPPar>
{
public:
BASIC_TYPE_ALIASES(SIMPL,);
typedef PhotonR::GaugeField EmField;
typedef PhotonR::GaugeLinkField EmComp;
class Result: Serializable
{
public:
class Projection: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(Projection,
std::vector<int>, momentum,
std::vector<std::vector<std::vector<Complex>>>, pi,
std::vector<std::vector<std::vector<Complex>>>, pi_free,
std::vector<std::vector<std::vector<Complex>>>, pi_2E,
std::vector<std::vector<std::vector<Complex>>>, pi_2T,
std::vector<std::vector<std::vector<Complex>>>, pi_S,
std::vector<std::vector<std::vector<Complex>>>, pi_4C,
std::vector<std::vector<std::vector<Complex>>>, pi_X,
std::vector<std::vector<std::vector<Complex>>>, pi_srcT,
std::vector<std::vector<std::vector<Complex>>>, pi_snkT);
};
GRID_SERIALIZABLE_CLASS_MEMBERS(Result,
std::vector<int>, lattice_size,
double, mass,
double, charge,
std::vector<Projection>, projection);
};
public:
// constructor
TScalarVP(const std::string name);
// destructor
virtual ~TScalarVP(void) {};
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
protected:
// setup
virtual void setup(void);
// execution
virtual void execute(void);
private:
void makeCaches(void);
// conserved vector two-point contraction
void vpContraction(ScalarField &vp,
ScalarField &prop_0_x, ScalarField &prop_nu_x,
TComplex u_src, ScalarField &u_snk, int mu);
// conserved vector two-point contraction with unit gauge link at sink
void vpContraction(ScalarField &vp,
ScalarField &prop_0_x, ScalarField &prop_nu_x,
TComplex u_src, int mu);
// write momentum-projected vacuum polarisation to file(s)
void project(std::vector<Complex> &projection, const ScalarField &vp,
int i_p);
// momentum-space Delta_1 insertion
void momD1(ScalarField &s, FFT &fft);
private:
bool momPhasesDone_;
std::string freeMomPropName_, GFSrcName_,
prop0Name_, propQName_,
propSunName_, propTadName_,
fftName_;
std::vector<std::string> phaseName_, muPropQName_,
momPhaseName_;
std::vector<std::vector<std::string> > vpTensorName_;
std::vector<ScalarField *> phase_, momPhase_;
};
MODULE_REGISTER(ScalarVP, TScalarVP, MScalar);
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MScalar_ScalarVP_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MUtilities/TestSeqConserved.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MUtilities/TestSeqConserved.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MUtilities;
template class Grid::Hadrons::MUtilities::TTestSeqConserved<FIMPL>;

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MUtilities/TestSeqConserved.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MUtilities_TestSeqConserved_hpp_
#define Hadrons_MUtilities_TestSeqConserved_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/*
Ward Identity contractions using sequential propagators.
-----------------------------
* options:
- q: point source propagator, 5D if available (string)
- qSeq: result of sequential insertion of conserved current using q (string)
- action: action used for computation of q (string)
- origin: string giving point source origin of q (string)
- t_J: time at which sequential current is inserted (int)
- mu: Lorentz index of current inserted (int)
- curr: current type, e.g. vector/axial (Current)
*/
/******************************************************************************
* TestSeqConserved *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MUtilities)
class TestSeqConservedPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(TestSeqConservedPar,
std::string, q,
std::string, qSeq,
std::string, action,
std::string, origin,
unsigned int, t_J,
unsigned int, mu,
Current, curr);
};
template <typename FImpl>
class TTestSeqConserved: public Module<TestSeqConservedPar>
{
public:
FERM_TYPE_ALIASES(FImpl,);
public:
// constructor
TTestSeqConserved(const std::string name);
// destructor
virtual ~TTestSeqConserved(void) {};
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
protected:
// setup
virtual void setup(void);
// execution
virtual void execute(void);
};
MODULE_REGISTER_TMP(TestSeqConserved, TTestSeqConserved<FIMPL>, MUtilities);
/******************************************************************************
* TTestSeqConserved implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TTestSeqConserved<FImpl>::TTestSeqConserved(const std::string name)
: Module<TestSeqConservedPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TTestSeqConserved<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().q, par().qSeq, par().action};
return in;
}
template <typename FImpl>
std::vector<std::string> TTestSeqConserved<FImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TTestSeqConserved<FImpl>::setup(void)
{
auto Ls = env().getObjectLs(par().q);
if (Ls != env().getObjectLs(par().action))
{
HADRONS_ERROR(Size, "Ls mismatch between quark action and propagator");
}
envTmpLat(PropagatorField, "tmp");
envTmpLat(LatticeComplex, "c");
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TTestSeqConserved<FImpl>::execute(void)
{
// Check sequential insertion of current gives same result as conserved
// current sink upon contraction. Assume q uses a point source.
auto &q = envGet(PropagatorField, par().q);
auto &qSeq = envGet(PropagatorField, par().qSeq);
auto &act = envGet(FMat, par().action);
Gamma g5(Gamma::Algebra::Gamma5);
Gamma::Algebra gA = (par().curr == Current::Axial) ?
Gamma::Algebra::Gamma5 :
Gamma::Algebra::Identity;
Gamma g(gA);
SitePropagator qSite;
Complex test_S, test_V, check_S, check_V;
std::vector<TComplex> check_buf;
std::vector<int> siteCoord;
envGetTmp(PropagatorField, tmp);
envGetTmp(LatticeComplex, c);
siteCoord = strToVec<int>(par().origin);
peekSite(qSite, qSeq, siteCoord);
test_S = trace(qSite*g);
test_V = trace(qSite*g*Gamma::gmu[par().mu]);
act.ContractConservedCurrent(q, q, tmp, par().curr, par().mu);
c = trace(tmp*g);
sliceSum(c, check_buf, Tp);
check_S = TensorRemove(check_buf[par().t_J]);
c = trace(tmp*g*Gamma::gmu[par().mu]);
sliceSum(c, check_buf, Tp);
check_V = TensorRemove(check_buf[par().t_J]);
LOG(Message) << "Test S = " << abs(test_S) << std::endl;
LOG(Message) << "Test V = " << abs(test_V) << std::endl;
LOG(Message) << "Check S = " << abs(check_S) << std::endl;
LOG(Message) << "Check V = " << abs(check_V) << std::endl;
// Check difference = 0
check_S -= test_S;
check_V -= test_V;
LOG(Message) << "Consistency check for sequential conserved "
<< par().curr << " current insertion: " << std::endl;
LOG(Message) << "Diff S = " << abs(check_S) << std::endl;
LOG(Message) << "Diff V = " << abs(check_V) << std::endl;
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_TestSeqConserved_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MUtilities/TestSeqGamma.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MUtilities/TestSeqGamma.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MUtilities;
template class Grid::Hadrons::MUtilities::TTestSeqGamma<FIMPL>;

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MUtilities/TestSeqGamma.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MUtilities_TestSeqGamma_hpp_
#define Hadrons_MUtilities_TestSeqGamma_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* TestSeqGamma *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MUtilities)
class TestSeqGammaPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(TestSeqGammaPar,
std::string, q,
std::string, qSeq,
std::string, origin,
Gamma::Algebra, gamma,
unsigned int, t_g);
};
template <typename FImpl>
class TTestSeqGamma: public Module<TestSeqGammaPar>
{
public:
FERM_TYPE_ALIASES(FImpl,);
public:
// constructor
TTestSeqGamma(const std::string name);
// destructor
virtual ~TTestSeqGamma(void) {};
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
protected:
// setup
virtual void setup(void);
// execution
virtual void execute(void);
};
MODULE_REGISTER_TMP(TestSeqGamma, TTestSeqGamma<FIMPL>, MUtilities);
/******************************************************************************
* TTestSeqGamma implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TTestSeqGamma<FImpl>::TTestSeqGamma(const std::string name)
: Module<TestSeqGammaPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TTestSeqGamma<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().q, par().qSeq};
return in;
}
template <typename FImpl>
std::vector<std::string> TTestSeqGamma<FImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TTestSeqGamma<FImpl>::setup(void)
{
envTmpLat(LatticeComplex, "c");
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TTestSeqGamma<FImpl>::execute(void)
{
auto &q = envGet(PropagatorField, par().q);
auto &qSeq = envGet(PropagatorField, par().qSeq);
Gamma g5(Gamma::Algebra::Gamma5);
Gamma g(par().gamma);
SitePropagator qSite;
Complex test, check;
std::vector<TComplex> check_buf;
std::vector<int> siteCoord;
// Check sequential insertion of gamma matrix gives same result as
// insertion of gamma at sink upon contraction. Assume q uses a point
// source.
envGetTmp(LatticeComplex, c);
siteCoord = strToVec<int>(par().origin);
peekSite(qSite, qSeq, siteCoord);
test = trace(g*qSite);
c = trace(adj(g)*g5*adj(q)*g5*g*q);
sliceSum(c, check_buf, Tp);
check = TensorRemove(check_buf[par().t_g]);
LOG(Message) << "Seq Result = " << abs(test) << std::endl;
LOG(Message) << "Reference = " << abs(check) << std::endl;
// Check difference = 0
check -= test;
LOG(Message) << "Consistency check for sequential " << par().gamma
<< " insertion = " << abs(check) << std::endl;
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_TestSeqGamma_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MScalar/VPCounterTerms.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: James Harrison <jch1g10@soton.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MScalar/VPCounterTerms.hpp>
#include <Hadrons/Modules/MScalar/Scalar.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MScalar;
/******************************************************************************
* TVPCounterTerms implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
TVPCounterTerms::TVPCounterTerms(const std::string name)
: Module<VPCounterTermsPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
std::vector<std::string> TVPCounterTerms::getInput(void)
{
std::vector<std::string> in = {par().source};
return in;
}
std::vector<std::string> TVPCounterTerms::getOutput(void)
{
std::vector<std::string> out;
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TVPCounterTerms::setup(void)
{
freeMomPropName_ = FREEMOMPROP(par().mass);
phaseName_.clear();
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
phaseName_.push_back("_shiftphase_" + std::to_string(mu));
}
GFSrcName_ = getName() + "_DinvSrc";
phatsqName_ = getName() + "_pHatSquared";
prop0Name_ = getName() + "_freeProp";
twoscalarName_ = getName() + "_2scalarProp";
psquaredName_ = getName() + "_psquaredProp";
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
momPhaseName_.push_back("_momentumphase_" + std::to_string(i_p));
}
}
envCreateLat(ScalarField, freeMomPropName_);
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
envCreateLat(ScalarField, phaseName_[mu]);
}
envCreateLat(ScalarField, phatsqName_);
envCreateLat(ScalarField, GFSrcName_);
envCreateLat(ScalarField, prop0Name_);
envCreateLat(ScalarField, twoscalarName_);
envCreateLat(ScalarField, psquaredName_);
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
envCacheLat(ScalarField, momPhaseName_[i_p]);
}
}
envTmpLat(ScalarField, "buf");
envTmpLat(ScalarField, "tmp_vp");
envTmpLat(ScalarField, "vpPhase");
}
// execution ///////////////////////////////////////////////////////////////////
void TVPCounterTerms::execute(void)
{
auto &source = envGet(ScalarField, par().source);
Complex ci(0.0,1.0);
FFT fft(env().getGrid());
envGetTmp(ScalarField, buf);
envGetTmp(ScalarField, tmp_vp);
// Momentum-space free scalar propagator
auto &G = envGet(ScalarField, freeMomPropName_);
SIMPL::MomentumSpacePropagator(G, par().mass);
// Phases and hat{p}^2
auto &phatsq = envGet(ScalarField, phatsqName_);
std::vector<int> &l = env().getGrid()->_fdimensions;
LOG(Message) << "Calculating shift phases..." << std::endl;
phatsq = zero;
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
Real twoPiL = M_PI*2./l[mu];
auto &phmu = envGet(ScalarField, phaseName_[mu]);
LatticeCoordinate(buf, mu);
phmu = exp(ci*twoPiL*buf);
phase_.push_back(&phmu);
buf = 2.*sin(.5*twoPiL*buf);
phatsq = phatsq + buf*buf;
}
// G*F*src
auto &GFSrc = envGet(ScalarField, GFSrcName_);
fft.FFT_all_dim(GFSrc, source, FFT::forward);
GFSrc = G*GFSrc;
// Position-space free scalar propagator
auto &prop0 = envGet(ScalarField, prop0Name_);
prop0 = GFSrc;
fft.FFT_all_dim(prop0, prop0, FFT::backward);
// Propagators for counter-terms
auto &twoscalarProp = envGet(ScalarField, twoscalarName_);
auto &psquaredProp = envGet(ScalarField, psquaredName_);
twoscalarProp = G*GFSrc;
fft.FFT_all_dim(twoscalarProp, twoscalarProp, FFT::backward);
psquaredProp = G*phatsq*GFSrc;
fft.FFT_all_dim(psquaredProp, psquaredProp, FFT::backward);
// Prepare output data structure if necessary
Result outputData;
if (!par().output.empty())
{
outputData.projection.resize(par().outputMom.size());
outputData.lattice_size = env().getGrid()->_fdimensions;
outputData.mass = par().mass;
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
outputData.projection[i_p].momentum = strToVec<int>(par().outputMom[i_p]);
outputData.projection[i_p].twoScalar.resize(env().getNd());
outputData.projection[i_p].threeScalar.resize(env().getNd());
outputData.projection[i_p].pSquaredInsertion.resize(env().getNd());
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
outputData.projection[i_p].twoScalar[nu].resize(env().getNd());
outputData.projection[i_p].threeScalar[nu].resize(env().getNd());
outputData.projection[i_p].pSquaredInsertion[nu].resize(env().getNd());
}
// Calculate phase factors
auto &momph_ip = envGet(ScalarField, momPhaseName_[i_p]);
momph_ip = zero;
for (unsigned int j = 0; j < env().getNd()-1; ++j)
{
Real twoPiL = M_PI*2./l[j];
LatticeCoordinate(buf, j);
buf = outputData.projection[i_p].momentum[j]*twoPiL*buf;
momph_ip = momph_ip + buf;
}
momph_ip = exp(-ci*momph_ip);
momPhase_.push_back(&momph_ip);
}
}
// Contractions
for (unsigned int nu = 0; nu < env().getNd(); ++nu)
{
buf = adj(Cshift(prop0, nu, -1));
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
// Two-scalar loop
tmp_vp = buf * Cshift(prop0, mu, 1);
tmp_vp -= Cshift(buf, mu, 1) * prop0;
tmp_vp = 2.0*real(tmp_vp);
// Output if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].twoScalar[mu][nu],
tmp_vp, i_p);
}
}
// Three-scalar loop (no vertex)
tmp_vp = buf * Cshift(twoscalarProp, mu, 1);
tmp_vp -= Cshift(buf, mu, 1) * twoscalarProp;
tmp_vp = 2.0*real(tmp_vp);
// Output if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].threeScalar[mu][nu],
tmp_vp, i_p);
}
}
// Three-scalar loop (hat{p}^2 insertion)
tmp_vp = buf * Cshift(psquaredProp, mu, 1);
tmp_vp -= Cshift(buf, mu, 1) * psquaredProp;
tmp_vp = 2.0*real(tmp_vp);
// Output if necessary
if (!par().output.empty())
{
for (unsigned int i_p = 0; i_p < par().outputMom.size(); ++i_p)
{
project(outputData.projection[i_p].pSquaredInsertion[mu][nu],
tmp_vp, i_p);
}
}
}
}
// OUTPUT IF NECESSARY
if (!par().output.empty())
{
LOG(Message) << "Saving momentum-projected correlators to '"
<< RESULT_FILE_NAME(par().output, vm().getTrajectory()) << "'..."
<< std::endl;
saveResult(par().output, "scalar_loops", outputData);
}
}
void TVPCounterTerms::project(std::vector<Complex> &projection, const ScalarField &vp, int i_p)
{
std::vector<TComplex> vecBuf;
envGetTmp(ScalarField, vpPhase);
vpPhase = vp*(*momPhase_[i_p]);
sliceSum(vpPhase, vecBuf, Tp);
projection.resize(vecBuf.size());
for (unsigned int t = 0; t < vecBuf.size(); ++t)
{
projection[t] = TensorRemove(vecBuf[t]);
}
}

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MScalar/VPCounterTerms.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: James Harrison <jch1g10@soton.ac.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MScalar_VPCounterTerms_hpp_
#define Hadrons_MScalar_VPCounterTerms_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* VPCounterTerms *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MScalar)
class VPCounterTermsPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(VPCounterTermsPar,
std::string, source,
double, mass,
std::string, output,
std::vector<std::string>, outputMom);
};
class TVPCounterTerms: public Module<VPCounterTermsPar>
{
public:
BASIC_TYPE_ALIASES(SIMPL,);
class Result: Serializable
{
public:
class Projection: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(Projection,
std::vector<int>, momentum,
std::vector<std::vector<std::vector<Complex>>>, twoScalar,
std::vector<std::vector<std::vector<Complex>>>, threeScalar,
std::vector<std::vector<std::vector<Complex>>>, pSquaredInsertion);
};
GRID_SERIALIZABLE_CLASS_MEMBERS(Result,
std::vector<int>, lattice_size,
double, mass,
std::vector<Projection>, projection);
};
public:
// constructor
TVPCounterTerms(const std::string name);
// destructor
virtual ~TVPCounterTerms(void) {};
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
protected:
// setup
virtual void setup(void);
// execution
virtual void execute(void);
private:
void project(std::vector<Complex> &projection, const ScalarField &vp, int i_p);
private:
std::string freeMomPropName_, GFSrcName_, phatsqName_, prop0Name_,
twoscalarName_, twoscalarVertexName_,
psquaredName_, psquaredVertexName_;
std::vector<std::string> phaseName_, momPhaseName_;
std::vector<ScalarField *> phase_, momPhase_;
};
MODULE_REGISTER(VPCounterTerms, TVPCounterTerms, MScalar);
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MScalar_VPCounterTerms_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WardIdentity.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MContraction/WardIdentity.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MContraction;
template class Grid::Hadrons::MContraction::TWardIdentity<FIMPL>;

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WardIdentity.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MContraction_WardIdentity_hpp_
#define Hadrons_MContraction_WardIdentity_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/*
Ward Identity contractions
-----------------------------
* options:
- q: propagator, 5D if available (string)
- action: action module used for propagator solution (string)
- mass: mass of quark (double)
- test_axial: whether or not to test PCAC relation.
*/
/******************************************************************************
* WardIdentity *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
class WardIdentityPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(WardIdentityPar,
std::string, q,
std::string, action,
double, mass,
bool, test_axial);
};
template <typename FImpl>
class TWardIdentity: public Module<WardIdentityPar>
{
public:
FERM_TYPE_ALIASES(FImpl,);
public:
// constructor
TWardIdentity(const std::string name);
// destructor
virtual ~TWardIdentity(void) {};
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
protected:
// setup
virtual void setup(void);
// execution
virtual void execute(void);
private:
unsigned int Ls_;
};
MODULE_REGISTER_TMP(WardIdentity, TWardIdentity<FIMPL>, MContraction);
/******************************************************************************
* TWardIdentity implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TWardIdentity<FImpl>::TWardIdentity(const std::string name)
: Module<WardIdentityPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TWardIdentity<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().q, par().action};
return in;
}
template <typename FImpl>
std::vector<std::string> TWardIdentity<FImpl>::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWardIdentity<FImpl>::setup(void)
{
Ls_ = env().getObjectLs(par().q);
if (Ls_ != env().getObjectLs(par().action))
{
HADRONS_ERROR(Size, "Ls mismatch between quark action and propagator");
}
envTmpLat(PropagatorField, "tmp");
envTmpLat(PropagatorField, "vector_WI");
if (par().test_axial)
{
envTmpLat(PropagatorField, "psi");
envTmpLat(LatticeComplex, "PP");
envTmpLat(LatticeComplex, "axial_defect");
envTmpLat(LatticeComplex, "PJ5q");
}
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWardIdentity<FImpl>::execute(void)
{
LOG(Message) << "Performing Ward Identity checks for quark '" << par().q
<< "'." << std::endl;
auto &q = envGet(PropagatorField, par().q);
auto &act = envGet(FMat, par().action);
Gamma g5(Gamma::Algebra::Gamma5);
// Compute D_mu V_mu, D here is backward derivative.
envGetTmp(PropagatorField, tmp);
envGetTmp(PropagatorField, vector_WI);
vector_WI = zero;
for (unsigned int mu = 0; mu < Nd; ++mu)
{
act.ContractConservedCurrent(q, q, tmp, Current::Vector, mu);
tmp -= Cshift(tmp, mu, -1);
vector_WI += tmp;
}
// Test ward identity D_mu V_mu = 0;
LOG(Message) << "Vector Ward Identity check Delta_mu V_mu = "
<< norm2(vector_WI) << std::endl;
if (par().test_axial)
{
envGetTmp(PropagatorField, psi);
envGetTmp(LatticeComplex, PP);
envGetTmp(LatticeComplex, axial_defect);
envGetTmp(LatticeComplex, PJ5q);
std::vector<TComplex> axial_buf;
// Compute <P|D_mu A_mu>, D is backwards derivative.
axial_defect = zero;
for (unsigned int mu = 0; mu < Nd; ++mu)
{
act.ContractConservedCurrent(q, q, tmp, Current::Axial, mu);
tmp -= Cshift(tmp, mu, -1);
axial_defect += trace(g5*tmp);
}
// Get <P|J5q> for 5D (zero for 4D) and <P|P>.
PJ5q = zero;
if (Ls_ > 1)
{
// <P|P>
ExtractSlice(tmp, q, 0, 0);
psi = 0.5 * (tmp - g5*tmp);
ExtractSlice(tmp, q, Ls_ - 1, 0);
psi += 0.5 * (tmp + g5*tmp);
PP = trace(adj(psi)*psi);
// <P|5Jq>
ExtractSlice(tmp, q, Ls_/2 - 1, 0);
psi = 0.5 * (tmp + g5*tmp);
ExtractSlice(tmp, q, Ls_/2, 0);
psi += 0.5 * (tmp - g5*tmp);
PJ5q = trace(adj(psi)*psi);
}
else
{
PP = trace(adj(q)*q);
}
// Test ward identity <P|D_mu A_mu> = 2m<P|P> + 2<P|J5q>
LOG(Message) << "|D_mu A_mu|^2 = " << norm2(axial_defect) << std::endl;
LOG(Message) << "|PP|^2 = " << norm2(PP) << std::endl;
LOG(Message) << "|PJ5q|^2 = " << norm2(PJ5q) << std::endl;
LOG(Message) << "Axial Ward Identity defect Delta_mu A_mu = "
<< norm2(axial_defect) << std::endl;
// Axial defect by timeslice.
axial_defect -= 2.*(par().mass*PP + PJ5q);
LOG(Message) << "Check Axial defect by timeslice" << std::endl;
sliceSum(axial_defect, axial_buf, Tp);
for (int t = 0; t < axial_buf.size(); ++t)
{
LOG(Message) << "t = " << t << ": "
<< TensorRemove(axial_buf[t]) << std::endl;
}
}
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_WardIdentity_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakHamiltonian.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MContraction_WeakHamiltonian_hpp_
#define Hadrons_MContraction_WeakHamiltonian_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* WeakHamiltonian *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
/*******************************************************************************
* Utilities for contractions involving the Weak Hamiltonian.
******************************************************************************/
//// Sum and store correlator.
#define MAKE_DIAG(exp, buf, res, n)\
sliceSum(exp, buf, Tp);\
res.name = (n);\
res.corr.resize(buf.size());\
for (unsigned int t = 0; t < buf.size(); ++t)\
{\
res.corr[t] = TensorRemove(buf[t]);\
}
//// Contraction of mu index: use 'mu' variable in exp.
#define SUM_MU(buf,exp)\
buf = zero;\
for (unsigned int mu = 0; mu < ndim; ++mu)\
{\
buf += exp;\
}
enum
{
i_V = 0,
i_A = 1,
n_i = 2
};
class WeakHamiltonianPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(WeakHamiltonianPar,
std::string, q1,
std::string, q2,
std::string, q3,
std::string, q4,
unsigned int, tSnk,
std::string, output);
};
#define MAKE_WEAK_MODULE(modname)\
class T##modname: public Module<WeakHamiltonianPar>\
{\
public:\
FERM_TYPE_ALIASES(FIMPL,)\
class Result: Serializable\
{\
public:\
GRID_SERIALIZABLE_CLASS_MEMBERS(Result,\
std::string, name,\
std::vector<Complex>, corr);\
};\
public:\
/* constructor */ \
T##modname(const std::string name);\
/* destructor */ \
virtual ~T##modname(void) {};\
/* dependency relation */ \
virtual std::vector<std::string> getInput(void);\
virtual std::vector<std::string> getOutput(void);\
public:\
std::vector<std::string> VA_label = {"V", "A"};\
protected:\
/* setup */ \
virtual void setup(void);\
/* execution */ \
virtual void execute(void);\
};\
MODULE_REGISTER(modname, T##modname, MContraction);
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MContraction_WeakHamiltonian_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MContraction/WeakHamiltonianEye.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MContraction;
/*
* Weak Hamiltonian current-current contractions, Eye-type.
*
* These contractions are generated by the Q1 and Q2 operators in the physical
* basis (see e.g. Fig 3 of arXiv:1507.03094).
*
* Schematics: q4 |
* /-<-¬ |
* / \ | q2 q3
* \ / | /----<------*------<----¬
* q2 \ / q3 | / /-*-¬ \
* /-----<-----* *-----<----¬ | / / \ \
* i * H_W * f | i * \ / q4 * f
* \ / | \ \->-/ /
* \ / | \ /
* \---------->---------/ | \----------->----------/
* q1 | q1
* |
* Saucer (S) | Eye (E)
*
* S: trace(q3*g5*q1*adj(q2)*g5*gL[mu][p_1]*q4*gL[mu][p_2])
* E: trace(q3*g5*q1*adj(q2)*g5*gL[mu][p_1])*trace(q4*gL[mu][p_2])
*
* Note q1 must be sink smeared.
*/
/******************************************************************************
* TWeakHamiltonianEye implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
TWeakHamiltonianEye::TWeakHamiltonianEye(const std::string name)
: Module<WeakHamiltonianPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
std::vector<std::string> TWeakHamiltonianEye::getInput(void)
{
std::vector<std::string> in = {par().q1, par().q2, par().q3, par().q4};
return in;
}
std::vector<std::string> TWeakHamiltonianEye::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TWeakHamiltonianEye::setup(void)
{
unsigned int ndim = env().getNd();
envTmpLat(LatticeComplex, "expbuf");
envTmpLat(PropagatorField, "tmp1");
envTmpLat(LatticeComplex, "tmp2");
envTmp(std::vector<PropagatorField>, "S_body", 1, ndim, PropagatorField(env().getGrid()));
envTmp(std::vector<PropagatorField>, "S_loop", 1, ndim, PropagatorField(env().getGrid()));
envTmp(std::vector<LatticeComplex>, "E_body", 1, ndim, LatticeComplex(env().getGrid()));
envTmp(std::vector<LatticeComplex>, "E_loop", 1, ndim, LatticeComplex(env().getGrid()));
}
// execution ///////////////////////////////////////////////////////////////////
void TWeakHamiltonianEye::execute(void)
{
LOG(Message) << "Computing Weak Hamiltonian (Eye type) contractions '"
<< getName() << "' using quarks '" << par().q1 << "', '"
<< par().q2 << ", '" << par().q3 << "' and '" << par().q4
<< "'." << std::endl;
auto &q1 = envGet(SlicedPropagator, par().q1);
auto &q2 = envGet(PropagatorField, par().q2);
auto &q3 = envGet(PropagatorField, par().q3);
auto &q4 = envGet(PropagatorField, par().q4);
Gamma g5 = Gamma(Gamma::Algebra::Gamma5);
std::vector<TComplex> corrbuf;
std::vector<Result> result(n_eye_diag);
unsigned int ndim = env().getNd();
envGetTmp(LatticeComplex, expbuf);
envGetTmp(PropagatorField, tmp1);
envGetTmp(LatticeComplex, tmp2);
envGetTmp(std::vector<PropagatorField>, S_body);
envGetTmp(std::vector<PropagatorField>, S_loop);
envGetTmp(std::vector<LatticeComplex>, E_body);
envGetTmp(std::vector<LatticeComplex>, E_loop);
// Get sink timeslice of q1.
SitePropagator q1Snk = q1[par().tSnk];
// Setup for S-type contractions.
for (int mu = 0; mu < ndim; ++mu)
{
S_body[mu] = MAKE_SE_BODY(q1Snk, q2, q3, GammaL(Gamma::gmu[mu]));
S_loop[mu] = MAKE_SE_LOOP(q4, GammaL(Gamma::gmu[mu]));
}
// Perform S-type contractions.
SUM_MU(expbuf, trace(S_body[mu]*S_loop[mu]))
MAKE_DIAG(expbuf, corrbuf, result[S_diag], "HW_S")
// Recycle sub-expressions for E-type contractions.
for (unsigned int mu = 0; mu < ndim; ++mu)
{
E_body[mu] = trace(S_body[mu]);
E_loop[mu] = trace(S_loop[mu]);
}
// Perform E-type contractions.
SUM_MU(expbuf, E_body[mu]*E_loop[mu])
MAKE_DIAG(expbuf, corrbuf, result[E_diag], "HW_E")
// IO
saveResult(par().output, "HW_Eye", result);
}

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakHamiltonianEye.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MContraction_WeakHamiltonianEye_hpp_
#define Hadrons_MContraction_WeakHamiltonianEye_hpp_
#include <Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* WeakHamiltonianEye *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
enum
{
S_diag = 0,
E_diag = 1,
n_eye_diag = 2
};
// Saucer and Eye subdiagram contractions.
#define MAKE_SE_BODY(Q_1, Q_2, Q_3, gamma) (Q_3*g5*Q_1*adj(Q_2)*g5*gamma)
#define MAKE_SE_LOOP(Q_loop, gamma) (Q_loop*gamma)
MAKE_WEAK_MODULE(WeakHamiltonianEye)
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MContraction_WeakHamiltonianEye_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MContraction/WeakHamiltonianNonEye.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MContraction;
/*
* Weak Hamiltonian current-current contractions, Non-Eye-type.
*
* These contractions are generated by the Q1 and Q2 operators in the physical
* basis (see e.g. Fig 3 of arXiv:1507.03094).
*
* Schematic:
* q2 q3 | q2 q3
* /--<--¬ /--<--¬ | /--<--¬ /--<--¬
* / \ / \ | / \ / \
* / \ / \ | / \ / \
* / \ / \ | / \ / \
* i * * H_W * f | i * * * H_W * f
* \ * | | \ / \ /
* \ / \ / | \ / \ /
* \ / \ / | \ / \ /
* \ / \ / | \-->--/ \-->--/
* \-->--/ \-->--/ | q1 q4
* q1 q4 |
* Connected (C) | Wing (W)
*
* C: trace(q1*adj(q2)*g5*gL[mu]*q3*adj(q4)*g5*gL[mu])
* W: trace(q1*adj(q2)*g5*gL[mu])*trace(q3*adj(q4)*g5*gL[mu])
*
*/
/******************************************************************************
* TWeakHamiltonianNonEye implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
TWeakHamiltonianNonEye::TWeakHamiltonianNonEye(const std::string name)
: Module<WeakHamiltonianPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
std::vector<std::string> TWeakHamiltonianNonEye::getInput(void)
{
std::vector<std::string> in = {par().q1, par().q2, par().q3, par().q4};
return in;
}
std::vector<std::string> TWeakHamiltonianNonEye::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TWeakHamiltonianNonEye::setup(void)
{
unsigned int ndim = env().getNd();
envTmpLat(LatticeComplex, "expbuf");
envTmpLat(PropagatorField, "tmp1");
envTmpLat(LatticeComplex, "tmp2");
envTmp(std::vector<PropagatorField>, "C_i_side_loop", 1, ndim, PropagatorField(env().getGrid()));
envTmp(std::vector<PropagatorField>, "C_f_side_loop", 1, ndim, PropagatorField(env().getGrid()));
envTmp(std::vector<LatticeComplex>, "W_i_side_loop", 1, ndim, LatticeComplex(env().getGrid()));
envTmp(std::vector<LatticeComplex>, "W_f_side_loop", 1, ndim, LatticeComplex(env().getGrid()));
}
// execution ///////////////////////////////////////////////////////////////////
void TWeakHamiltonianNonEye::execute(void)
{
LOG(Message) << "Computing Weak Hamiltonian (Non-Eye type) contractions '"
<< getName() << "' using quarks '" << par().q1 << "', '"
<< par().q2 << ", '" << par().q3 << "' and '" << par().q4
<< "'." << std::endl;
auto &q1 = envGet(PropagatorField, par().q1);
auto &q2 = envGet(PropagatorField, par().q2);
auto &q3 = envGet(PropagatorField, par().q3);
auto &q4 = envGet(PropagatorField, par().q4);
Gamma g5 = Gamma(Gamma::Algebra::Gamma5);
std::vector<TComplex> corrbuf;
std::vector<Result> result(n_noneye_diag);
unsigned int ndim = env().getNd();
envGetTmp(LatticeComplex, expbuf);
envGetTmp(PropagatorField, tmp1);
envGetTmp(LatticeComplex, tmp2);
envGetTmp(std::vector<PropagatorField>, C_i_side_loop);
envGetTmp(std::vector<PropagatorField>, C_f_side_loop);
envGetTmp(std::vector<LatticeComplex>, W_i_side_loop);
envGetTmp(std::vector<LatticeComplex>, W_f_side_loop);
// Setup for C-type contractions.
for (int mu = 0; mu < ndim; ++mu)
{
C_i_side_loop[mu] = MAKE_CW_SUBDIAG(q1, q2, GammaL(Gamma::gmu[mu]));
C_f_side_loop[mu] = MAKE_CW_SUBDIAG(q3, q4, GammaL(Gamma::gmu[mu]));
}
// Perform C-type contractions.
SUM_MU(expbuf, trace(C_i_side_loop[mu]*C_f_side_loop[mu]))
MAKE_DIAG(expbuf, corrbuf, result[C_diag], "HW_C")
// Recycle sub-expressions for W-type contractions.
for (unsigned int mu = 0; mu < ndim; ++mu)
{
W_i_side_loop[mu] = trace(C_i_side_loop[mu]);
W_f_side_loop[mu] = trace(C_f_side_loop[mu]);
}
// Perform W-type contractions.
SUM_MU(expbuf, W_i_side_loop[mu]*W_f_side_loop[mu])
MAKE_DIAG(expbuf, corrbuf, result[W_diag], "HW_W")
// IO
saveResult(par().output, "HW_NonEye", result);
}

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakHamiltonianNonEye.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MContraction_WeakHamiltonianNonEye_hpp_
#define Hadrons_MContraction_WeakHamiltonianNonEye_hpp_
#include <Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* WeakHamiltonianNonEye *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
enum
{
W_diag = 0,
C_diag = 1,
n_noneye_diag = 2
};
// Wing and Connected subdiagram contractions
#define MAKE_CW_SUBDIAG(Q_1, Q_2, gamma) (Q_1*adj(Q_2)*g5*gamma)
MAKE_WEAK_MODULE(WeakHamiltonianNonEye)
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MContraction_WeakHamiltonianNonEye_hpp_

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakNeutral4ptDisc.cc
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#include <Hadrons/Modules/MContraction/WeakNeutral4ptDisc.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MContraction;
/*
* Weak Hamiltonian + current contractions, disconnected topology for neutral
* mesons.
*
* These contractions are generated by operators Q_1,...,10 of the dS=1 Weak
* Hamiltonian in the physical basis and an additional current J (see e.g.
* Fig 11 of arXiv:1507.03094).
*
* Schematic:
*
* q2 q4 q3
* /--<--¬ /---<--¬ /---<--¬
* / \ / \ / \
* i * * H_W | J * * f
* \ / \ / \ /
* \--->---/ \-------/ \------/
* q1
*
* options
* - q1: input propagator 1 (string)
* - q2: input propagator 2 (string)
* - q3: input propagator 3 (string), assumed to be sequential propagator
* - q4: input propagator 4 (string), assumed to be a loop
*
* type 1: trace(q1*adj(q2)*g5*gL[mu])*trace(loop*gL[mu])*trace(q3*g5)
* type 2: trace(q1*adj(q2)*g5*gL[mu]*loop*gL[mu])*trace(q3*g5)
*/
/*******************************************************************************
* TWeakNeutral4ptDisc implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
TWeakNeutral4ptDisc::TWeakNeutral4ptDisc(const std::string name)
: Module<WeakHamiltonianPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
std::vector<std::string> TWeakNeutral4ptDisc::getInput(void)
{
std::vector<std::string> in = {par().q1, par().q2, par().q3, par().q4};
return in;
}
std::vector<std::string> TWeakNeutral4ptDisc::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TWeakNeutral4ptDisc::setup(void)
{
unsigned int ndim = env().getNd();
envTmpLat(LatticeComplex, "expbuf");
envTmpLat(PropagatorField, "tmp");
envTmpLat(LatticeComplex, "curr");
envTmp(std::vector<PropagatorField>, "meson", 1, ndim, PropagatorField(env().getGrid()));
envTmp(std::vector<PropagatorField>, "loop", 1, ndim, PropagatorField(env().getGrid()));
}
// execution ///////////////////////////////////////////////////////////////////
void TWeakNeutral4ptDisc::execute(void)
{
LOG(Message) << "Computing Weak Hamiltonian neutral disconnected contractions '"
<< getName() << "' using quarks '" << par().q1 << "', '"
<< par().q2 << ", '" << par().q3 << "' and '" << par().q4
<< "'." << std::endl;
auto &q1 = envGet(PropagatorField, par().q1);
auto &q2 = envGet(PropagatorField, par().q2);
auto &q3 = envGet(PropagatorField, par().q3);
auto &q4 = envGet(PropagatorField, par().q4);
Gamma g5 = Gamma(Gamma::Algebra::Gamma5);
std::vector<TComplex> corrbuf;
std::vector<Result> result(n_neut_disc_diag);
unsigned int ndim = env().getNd();
envGetTmp(LatticeComplex, expbuf);
envGetTmp(PropagatorField, tmp);
envGetTmp(LatticeComplex, curr);
envGetTmp(std::vector<PropagatorField>, meson);
envGetTmp(std::vector<PropagatorField>, loop);
// Setup for type 1 contractions.
for (int mu = 0; mu < ndim; ++mu)
{
meson[mu] = MAKE_DISC_MESON(q1, q2, GammaL(Gamma::gmu[mu]));
loop[mu] = MAKE_DISC_LOOP(q4, GammaL(Gamma::gmu[mu]));
}
curr = MAKE_DISC_CURR(q3, GammaL(Gamma::Algebra::Gamma5));
// Perform type 1 contractions.
SUM_MU(expbuf, trace(meson[mu]*loop[mu]))
expbuf *= curr;
MAKE_DIAG(expbuf, corrbuf, result[neut_disc_1_diag], "HW_disc0_1")
// Perform type 2 contractions.
SUM_MU(expbuf, trace(meson[mu])*trace(loop[mu]))
expbuf *= curr;
MAKE_DIAG(expbuf, corrbuf, result[neut_disc_2_diag], "HW_disc0_2")
// IO
saveResult(par().output, "HW_disc0", result);
}

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MContraction/WeakNeutral4ptDisc.hpp
Copyright (C) 2015-2018
Author: Antonin Portelli <antonin.portelli@me.com>
Author: Lanny91 <andrew.lawson@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution directory
*************************************************************************************/
/* END LEGAL */
#ifndef Hadrons_MContraction_WeakNeutral4ptDisc_hpp_
#define Hadrons_MContraction_WeakNeutral4ptDisc_hpp_
#include <Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* WeakNeutral4ptDisc *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
enum
{
neut_disc_1_diag = 0,
neut_disc_2_diag = 1,
n_neut_disc_diag = 2
};
// Neutral 4pt disconnected subdiagram contractions.
#define MAKE_DISC_MESON(Q_1, Q_2, gamma) (Q_1*adj(Q_2)*g5*gamma)
#define MAKE_DISC_LOOP(Q_LOOP, gamma) (Q_LOOP*gamma)
#define MAKE_DISC_CURR(Q_c, gamma) (trace(Q_c*gamma))
MAKE_WEAK_MODULE(WeakNeutral4ptDisc)
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MContraction_WeakNeutral4ptDisc_hpp_