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Hadrons: 4-quark eye 3-pt contractions

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This commit is contained in:
Antonin Portelli 2019-02-05 18:53:20 +00:00
parent 90d6d28547
commit 08d8b1d5fb
4 changed files with 182 additions and 0 deletions
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1
Hadrons/Modules.hpp
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#include <Hadrons/Modules/MContraction/WeakEye3pt.hpp>
#include <Hadrons/Modules/MContraction/Baryon.hpp>
#include <Hadrons/Modules/MContraction/A2AAslashField.hpp>
#include <Hadrons/Modules/MContraction/A2AMesonField.hpp>

7
Hadrons/Modules/MContraction/WeakEye3pt.cc Normal file
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#include <Hadrons/Modules/MContraction/WeakEye3pt.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MContraction;
template class Grid::Hadrons::MContraction::TWeakEye3pt<FIMPL>;

172
Hadrons/Modules/MContraction/WeakEye3pt.hpp Normal file
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#ifndef Hadrons_MContraction_WeakEye3pt_hpp_
#define Hadrons_MContraction_WeakEye3pt_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/*
* Weak Hamiltonian meson 3-pt diagrams, eye topologies.
*
* Schematics: loop |
* /-<-¬ |
* / \ | qbl G qbr
* \ / | /----<------*------<----¬
* qbl \ / qbr | / /-*-¬ \
* /-----<-----* *-----<----¬ | / / G \ \
* gIn * G G * gOut | gIn * \ / loop * gOut
* \ / | \ \->-/ /
* \ / | \ /
* \---------->---------/ | \----------->----------/
* qs | qs
* |
* one trace | two traces
*
* one trace : tr(qbr*gOut*qs*adj(gIn)*g5*adj(qbl)*g5*G*loop*G*qbr*gOut)
* two traces: tr(qbr*gOut*qs*adj(gIn)*g5*adj(qbl)*g5*G)*tr(loop*G)
*
*/
BEGIN_MODULE_NAMESPACE(MContraction)
class WeakEye3ptPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(WeakEye3ptPar,
std::string, qBarLeft,
std::string, qBarRight,
std::string, qSpectator,
std::string, loop,
unsigned int, tOut,
Gamma::Algebra, gammaIn,
Gamma::Algebra, gammaOut,
std::string, output);
};
template <typename FImpl>
class TWeakEye3pt: public Module<WeakEye3ptPar>
{
public:
FERM_TYPE_ALIASES(FImpl,);
class Metadata: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(Metadata,
Gamma::Algebra, in,
Gamma::Algebra, out,
Gamma::Algebra, op,
unsigned int, trace);
};
typedef Correlator<Metadata> Result;
public:
// constructor
TWeakEye3pt(const std::string name);
// destructor
virtual ~TWeakEye3pt(void) {};
// 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_TMP(WeakEye3pt, TWeakEye3pt<FIMPL>, MContraction);
/******************************************************************************
* TWeakEye3pt implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename FImpl>
TWeakEye3pt<FImpl>::TWeakEye3pt(const std::string name)
: Module<WeakEye3ptPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename FImpl>
std::vector<std::string> TWeakEye3pt<FImpl>::getInput(void)
{
std::vector<std::string> in = {par().qBarLeft, par().qBarRight,
par().qSpectator};
return in;
}
template <typename FImpl>
std::vector<std::string> TWeakEye3pt<FImpl>::getOutput(void)
{
std::vector<std::string> out = {};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWeakEye3pt<FImpl>::setup(void)
{
envTmpLat(ComplexField, "corr");
}
// execution ///////////////////////////////////////////////////////////////////
template <typename FImpl>
void TWeakEye3pt<FImpl>::execute(void)
{
LOG(Message) << "Computing mesonic weak 3pt contractions, non-eye topologies" << std::endl;
LOG(Message) << "gIn : " << par().gammaIn << std::endl;
LOG(Message) << "gOut: " << par().gammaIn << std::endl;
LOG(Message) << "tOut: " << par().tOut << std::endl;
LOG(Message) << "qbl : " << par().qBarLeft << std::endl;
LOG(Message) << "qbr : " << par().qBarRight << std::endl;
LOG(Message) << "qs : " << par().qSpectator << std::endl;
LOG(Message) << "loop: " << par().loop << std::endl;
std::vector<Result> result;
Result r;
auto &qbl = envGet(PropagatorField, par().qBarLeft);
auto &qbr = envGet(PropagatorField, par().qBarRight);
auto &loop = envGet(PropagatorField, par().loop);
auto &qs = envGet(SlicedPropagator, par().qSpectator);
auto qst = qs[par().tOut];
Gamma gIn(par().gammaIn), gOut(par().gammaOut);
Gamma g5(Gamma::Algebra::Gamma5);
envGetTmp(ComplexField, corr);
r.info.in = par().gammaIn;
r.info.out = par().gammaOut;
for (auto &G: Gamma::gall)
{
SlicedComplex buf;
r.info.op = G.g;
// one trace
corr = trace(qbr*gOut*qst*adj(gIn)*g5*adj(qbl)*g5*G*loop*G*qbr*gOut);
sliceSum(corr, buf, Tp);
r.corr.clear();
for (unsigned int t = 0; t < buf.size(); ++t)
{
r.corr.push_back(TensorRemove(buf[t]));
}
r.info.trace = 1;
result.push_back(r);
// two traces
corr = trace(qbr*gOut*qst*adj(gIn)*g5*adj(qbl)*g5*G)*trace(loop*G);
sliceSum(corr, buf, Tp);
r.corr.clear();
for (unsigned int t = 0; t < buf.size(); ++t)
{
r.corr.push_back(TensorRemove(buf[t]));
}
r.info.trace = 2;
result.push_back(r);
}
saveResult(par().output, "weakEye3pt", result);
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MContraction_WeakEye3pt_hpp_

2
Hadrons/modules.inc
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modules_cc =\
Modules/MContraction/Baryon.cc \
Modules/MContraction/Meson.cc \
Modules/MContraction/WeakEye3pt.cc \
Modules/MContraction/WeakNonEye3pt.cc \
Modules/MContraction/A2AAslashField.cc \
Modules/MContraction/A2AMesonField.cc \
@ -63,6 +64,7 @@ modules_cc =\
Modules/MIO/LoadA2AVectors.cc
modules_hpp =\
Modules/MContraction/WeakEye3pt.hpp \
Modules/MContraction/Baryon.hpp \
Modules/MContraction/A2AAslashField.hpp \
Modules/MContraction/A2AMesonField.hpp \