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Weak Hamiltonian contraction modules, for Eye and NonEye contraction topologies. Execution for NonEye type diagrams has been implemented, but not yet for Eye type.

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Lanny91
2017-01-27 16:58:11 +00:00
parent 977f34dca6
commit 9bf4108d1f
7 changed files with 490 additions and 0 deletions
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3
extras/Hadrons/Modules.hpp
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@@ -30,6 +30,9 @@ See the full license in the file "LICENSE" in the top level distribution directo
#include <Grid/Hadrons/Modules/MAction/Wilson.hpp>
#include <Grid/Hadrons/Modules/MContraction/Baryon.hpp>
#include <Grid/Hadrons/Modules/MContraction/Meson.hpp>
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonianEye.hpp>
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.hpp>
#include <Grid/Hadrons/Modules/MGauge/Load.hpp>
#include <Grid/Hadrons/Modules/MGauge/Random.hpp>
#include <Grid/Hadrons/Modules/MGauge/Unit.hpp>

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extras/Hadrons/Modules/MContraction/WeakHamiltonian.hpp Normal file
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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: extras/Hadrons/Modules/MContraction/WeakHamiltonian.hpp
Copyright (C) 2017
Author: Andrew Lawson <andrew.lawson1991@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_WeakHamiltonian_hpp_
#define Hadrons_WeakHamiltonian_hpp_
#include <Grid/Hadrons/Global.hpp>
#include <Grid/Hadrons/Module.hpp>
#include <Grid/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 < Nd; ++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,
std::string, output);
};
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_WeakHamiltonian_hpp_

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extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc Normal file
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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
Copyright (C) 2017
Author: Andrew Lawson <andrew.lawson1991@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 <Grid/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 | q4
* /-<-¬ | /-<-¬
* / \ | / \
* \ / | \ /
* q2 \ / q3 | \_ _/
* |-----<-----* *-----<----¬ | q2 * q3
* i * H_W * f | |-----<------*------<----¬
* \ / | i * H_W * 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])
*/
/******************************************************************************
* 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;
return in;
}
std::vector<std::string> TWeakHamiltonianEye::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TWeakHamiltonianEye::setup(void)
{
}
// execution ///////////////////////////////////////////////////////////////////
void TWeakHamiltonianEye::execute(void)
{
}

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extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.hpp Normal file
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@@ -0,0 +1,75 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.hpp
Copyright (C) 2017
Author: Andrew Lawson <andrew.lawson1991@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_WeakHamiltonianEye_hpp_
#define Hadrons_WeakHamiltonianEye_hpp_
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* WeakHamiltonianEye *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
enum
{
S_diag = 0,
E_diag = 1
};
// 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)
class TWeakHamiltonianEye: public Module<WeakHamiltonianPar>
{
public:
TYPE_ALIASES(FIMPL,)
public:
// constructor
TWeakHamiltonianEye(const std::string name);
// destructor
virtual ~TWeakHamiltonianEye(void) = default;
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
// setup
virtual void setup(void);
// execution
virtual void execute(void);
};
MODULE_REGISTER_NS(WeakHamiltonianEye, TWeakHamiltonianEye, MContraction);
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_WeakHamiltonianEye_hpp_

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extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc Normal file
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@@ -0,0 +1,148 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.cc
Copyright (C) 2017
Author: Andrew Lawson <andrew.lawson1991@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 <Grid/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;
return in;
}
std::vector<std::string> TWeakHamiltonianNonEye::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
void TWeakHamiltonianNonEye::setup(void)
{
}
// execution ///////////////////////////////////////////////////////////////////
void TWeakHamiltonianNonEye::execute(void)
{
XmlWriter writer(par().output);
PropagatorField &q1 = *env().template getObject<PropagatorField>(par().q1);
PropagatorField &q2 = *env().template getObject<PropagatorField>(par().q2);
PropagatorField &q3 = *env().template getObject<PropagatorField>(par().q3);
PropagatorField &q4 = *env().template getObject<PropagatorField>(par().q4);
SpinMatrix g5 = makeGammaProd(Ns*Ns - 1); // Soon to be deprecated.
LatticeComplex expbuf(env().getGrid());
std::vector<TComplex> corrbuf;
std::vector<Result> result;
PropagatorField tmp1(env().getGrid());
LatticeComplex tmp2(env().getGrid());
std::vector<PropagatorField> C_i_side_loop(Nd, tmp1);
std::vector<PropagatorField> C_f_side_loop(Nd, tmp1);
std::vector<LatticeComplex> W_i_side_loop(Nd, tmp2);
std::vector<LatticeComplex> W_f_side_loop(Nd, tmp2);
// Soon to be deprecated. Keeping V and A parts distinct to take advantage
// of zero-flop gamma products, when implemented.
std::vector<std::vector<SpinMatrix>> gL;
gL.resize(n_i);
gL[i_V].resize(Nd);
gL[i_A].resize(Nd);
for (unsigned int mu = 0; mu < Nd; ++mu)
{
gL[i_V][mu] = makeGammaProd(mu);
gL[i_A][mu] = g5*makeGammaProd(mu);
}
// Setup for C-type contractions.
for (int mu = 0; mu < Nd; ++mu)
{
C_i_side_loop[mu] = MAKE_CW_SUBDIAG(q1, q2, gL[i_V][mu]) -
MAKE_CW_SUBDIAG(q1, q2, gL[i_A][mu]);
C_f_side_loop[mu] = MAKE_CW_SUBDIAG(q3, q4, gL[i_V][mu]) -
MAKE_CW_SUBDIAG(q3, q4, gL[i_A][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], "3pt_HW_C")
// Recycle sub-expressions for W-type contractions.
for (unsigned int mu = 0; mu < Nd; ++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], "3pt_HW_W")
write(writer, "HW_3pt_NonEye", result[C_diag]);
write(writer, "HW_3pt_NonEye", result[W_diag]);
}

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extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.hpp Normal file
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@@ -0,0 +1,81 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: extras/Hadrons/Modules/MContraction/WeakHamiltonianNonEye.hpp
Copyright (C) 2017
Author: Andrew Lawson <andrew.lawson1991@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_WeakHamiltonianNonEye_hpp_
#define Hadrons_WeakHamiltonianNonEye_hpp_
#include <Grid/Hadrons/Modules/MContraction/WeakHamiltonian.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* WeakHamiltonianNonEye *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MContraction)
enum
{
W_diag = 0,
C_diag = 1
};
// Wing and Connected subdiagram contractions
#define MAKE_CW_SUBDIAG(Q_1, Q_2, gamma) (Q_1*adj(Q_2)*g5*gamma)
class TWeakHamiltonianNonEye: public Module<WeakHamiltonianPar>
{
public:
TYPE_ALIASES(FIMPL,)
class Result: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(Result,
std::string, name,
std::vector<Complex>, corr);
};
public:
// constructor
TWeakHamiltonianNonEye(const std::string name);
// destructor
virtual ~TWeakHamiltonianNonEye(void) = default;
// dependency relation
virtual std::vector<std::string> getInput(void);
virtual std::vector<std::string> getOutput(void);
// setup
virtual void setup(void);
// execution
virtual void execute(void);
};
MODULE_REGISTER_NS(WeakHamiltonianNonEye, TWeakHamiltonianNonEye, MContraction);
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_WeakHamiltonianNonEye_hpp_

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extras/Hadrons/modules.inc
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@@ -1,4 +1,6 @@
modules_cc =\
Modules/MContraction/WeakHamiltonianEye.cc \
Modules/MContraction/WeakHamiltonianNonEye.cc \
Modules/MGauge/Load.cc \
Modules/MGauge/Random.cc \
Modules/MGauge/Unit.cc
@@ -8,6 +10,9 @@ modules_hpp =\
Modules/MAction/Wilson.hpp \
Modules/MContraction/Baryon.hpp \
Modules/MContraction/Meson.hpp \
Modules/MContraction/WeakHamiltonian.hpp \
Modules/MContraction/WeakHamiltonianEye.hpp \
Modules/MContraction/WeakHamiltonianNonEye.hpp \
Modules/MGauge/Load.hpp \
Modules/MGauge/Random.hpp \
Modules/MGauge/Unit.hpp \