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116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: extras/Hadrons/Modules/MContraction/WeakHamiltonian.hpp
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Copyright (C) 2017
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Author: Andrew Lawson <andrew.lawson1991@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#ifndef Hadrons_MContraction_WeakHamiltonian_hpp_
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#define Hadrons_MContraction_WeakHamiltonian_hpp_
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#include <Grid/Hadrons/Global.hpp>
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#include <Grid/Hadrons/Module.hpp>
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#include <Grid/Hadrons/ModuleFactory.hpp>
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BEGIN_HADRONS_NAMESPACE
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/******************************************************************************
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* WeakHamiltonian *
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******************************************************************************/
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BEGIN_MODULE_NAMESPACE(MContraction)
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/*******************************************************************************
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* Utilities for contractions involving the Weak Hamiltonian.
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******************************************************************************/
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//// Sum and store correlator.
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#define MAKE_DIAG(exp, buf, res, n)\
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sliceSum(exp, buf, Tp);\
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res.name = (n);\
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res.corr.resize(buf.size());\
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for (unsigned int t = 0; t < buf.size(); ++t)\
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{\
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res.corr[t] = TensorRemove(buf[t]);\
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}
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//// Contraction of mu index: use 'mu' variable in exp.
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#define SUM_MU(buf,exp)\
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buf = zero;\
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for (unsigned int mu = 0; mu < ndim; ++mu)\
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{\
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buf += exp;\
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}
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enum
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{
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i_V = 0,
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i_A = 1,
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n_i = 2
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};
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class WeakHamiltonianPar: Serializable
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{
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public:
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GRID_SERIALIZABLE_CLASS_MEMBERS(WeakHamiltonianPar,
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std::string, q1,
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std::string, q2,
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std::string, q3,
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std::string, q4,
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unsigned int, tSnk,
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std::string, output);
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};
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#define MAKE_WEAK_MODULE(modname)\
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class T##modname: public Module<WeakHamiltonianPar>\
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{\
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public:\
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FERM_TYPE_ALIASES(FIMPL,)\
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class Result: Serializable\
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{\
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public:\
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GRID_SERIALIZABLE_CLASS_MEMBERS(Result,\
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std::string, name,\
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std::vector<Complex>, corr);\
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};\
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public:\
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/* constructor */ \
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T##modname(const std::string name);\
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/* destructor */ \
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virtual ~T##modname(void) = default;\
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/* dependency relation */ \
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virtual std::vector<std::string> getInput(void);\
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virtual std::vector<std::string> getOutput(void);\
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/* setup */ \
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virtual void setup(void);\
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/* execution */ \
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virtual void execute(void);\
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std::vector<std::string> VA_label = {"V", "A"};\
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};\
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MODULE_REGISTER_NS(modname, T##modname, MContraction);
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END_MODULE_NAMESPACE
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END_HADRONS_NAMESPACE
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#endif // Hadrons_MContraction_WeakHamiltonian_hpp_
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