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Hadrons: Module to electrify a gauge field

This commit is contained in:
Vera Guelpers 2018-11-06 10:27:18 +00:00
parent febe41cc1d
commit 85699daef2
4 changed files with 188 additions and 0 deletions

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@ -27,6 +27,7 @@
#include <Hadrons/Modules/MGauge/UnitEm.hpp>
#include <Hadrons/Modules/MGauge/StoutSmearing.hpp>
#include <Hadrons/Modules/MGauge/Unit.hpp>
#include <Hadrons/Modules/MGauge/Electrify.hpp>
#include <Hadrons/Modules/MGauge/Random.hpp>
#include <Hadrons/Modules/MGauge/GaugeFix.hpp>
#include <Hadrons/Modules/MGauge/FundtoHirep.hpp>

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@ -0,0 +1,34 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MGauge/Electrify.cc
Copyright (C) 2015-2018
Author: Vera Guelpers <Vera.Guelpers@ed.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/MGauge/Electrify.hpp>
using namespace Grid;
using namespace Hadrons;
using namespace MGauge;
template class Grid::Hadrons::MGauge::TElectrify<GIMPL>;

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@ -0,0 +1,151 @@
/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Hadrons/Modules/MGauge/Electrify.hpp
Copyright (C) 2015-2018
Author: Vera Guelpers <Vera.Guelpers@ed.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_MGauge_Electrify_hpp_
#define Hadrons_MGauge_Electrify_hpp_
#include <Hadrons/Global.hpp>
#include <Hadrons/Module.hpp>
#include <Hadrons/ModuleFactory.hpp>
BEGIN_HADRONS_NAMESPACE
/******************************************************************************
* Electrify gauge *
******************************************************************************/
BEGIN_MODULE_NAMESPACE(MGauge)
/****************************************************************************
* Electrify a gauge field:
*
* Ue_mu(x) = U_mu(x)*exp(ieqA_mu(x))
*
* with
*
* - gauge: U_mu(x): gauge field
* - photon: A_mu(x): electromagnetic photon field
* - e: value for the elementary charge
* - q: charge in units of e
*
*****************************************************************************/
class ElectrifyPar: Serializable
{
public:
GRID_SERIALIZABLE_CLASS_MEMBERS(ElectrifyPar,
std::string, gauge,
std::string, photon,
double, e,
double, charge);
};
template <typename GImpl>
class TElectrify: public Module<ElectrifyPar>
{
public:
GAUGE_TYPE_ALIASES(GImpl,);
public:
typedef PhotonR::GaugeField EmField;
public:
// constructor
TElectrify(const std::string name);
// destructor
virtual ~TElectrify(void) {};
// dependencies/products
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(Electrify, TElectrify<GIMPL>, MGauge);
/******************************************************************************
* TElectrify implementation *
******************************************************************************/
// constructor /////////////////////////////////////////////////////////////////
template <typename GImpl>
TElectrify<GImpl>::TElectrify(const std::string name)
: Module<ElectrifyPar>(name)
{}
// dependencies/products ///////////////////////////////////////////////////////
template <typename GImpl>
std::vector<std::string> TElectrify<GImpl>::getInput(void)
{
std::vector<std::string> in = {par().gauge, par().photon};
return in;
}
template <typename GImpl>
std::vector<std::string> TElectrify<GImpl>::getOutput(void)
{
std::vector<std::string> out = {getName()};
return out;
}
// setup ///////////////////////////////////////////////////////////////////////
template <typename GImpl>
void TElectrify<GImpl>::setup(void)
{
envCreateLat(GaugeField, getName());
envTmpLat(LatticeComplex, "eiAmu");
}
// execution ///////////////////////////////////////////////////////////////////
template <typename GImpl>
void TElectrify<GImpl>::execute(void)
{
LOG(Message) << "Electrify the gauge field " << par().gauge << " using the photon field "
<< par().photon << " with charge e*q= " << par().e << "*" << par().charge << std::endl;
auto &Ue = envGet(GaugeField, getName());
auto &U = envGet(GaugeField, par().gauge);
auto &A = envGet(EmField, par().photon);
envGetTmp(LatticeComplex, eiAmu);
Complex i(0.0,1.0);
for(unsigned int mu = 0; mu < env().getNd(); mu++)
{
eiAmu = exp(i * par().e * par().charge * PeekIndex<LorentzIndex>(A, mu));
PokeIndex<LorentzIndex>(Ue, PeekIndex<LorentzIndex>(U, mu) * eiAmu, mu);
}
}
END_MODULE_NAMESPACE
END_HADRONS_NAMESPACE
#endif // Hadrons_MGauge_Electrify_hpp_

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@ -25,6 +25,7 @@ modules_cc =\
Modules/MSolver/LocalCoherenceLanczos.cc \
Modules/MGauge/StoutSmearing.cc \
Modules/MGauge/Unit.cc \
Modules/MGauge/Electrify.cc \
Modules/MGauge/UnitEm.cc \
Modules/MGauge/StochEm.cc \
Modules/MGauge/Random.cc \
@ -98,6 +99,7 @@ modules_hpp =\
Modules/MGauge/UnitEm.hpp \
Modules/MGauge/StoutSmearing.hpp \
Modules/MGauge/Unit.hpp \
Modules/MGauge/Electrify.hpp \
Modules/MGauge/Random.hpp \
Modules/MGauge/GaugeFix.hpp \
Modules/MGauge/FundtoHirep.hpp \