mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-21 01:25:48 +01:00
136 lines
4.0 KiB
C++
136 lines
4.0 KiB
C++
#ifndef Hadrons_SeqGamma_hpp_
|
|
#define Hadrons_SeqGamma_hpp_
|
|
|
|
#include <Grid/Hadrons/Global.hpp>
|
|
#include <Grid/Hadrons/Module.hpp>
|
|
#include <Grid/Hadrons/ModuleFactory.hpp>
|
|
|
|
BEGIN_HADRONS_NAMESPACE
|
|
|
|
/*
|
|
|
|
Sequential source
|
|
-----------------------------
|
|
* src_x = q_x * theta(x_3 - tA) * theta(tB - x_3) * gamma * exp(i x.mom)
|
|
|
|
* options:
|
|
- q: input propagator (string)
|
|
- tA: begin timeslice (integer)
|
|
- tB: end timesilce (integer)
|
|
- gamma: gamma product to insert (integer)
|
|
- mom: momentum insertion, space-separated float sequence (e.g ".1 .2 1. 0.")
|
|
|
|
*/
|
|
|
|
/******************************************************************************
|
|
* SeqGamma *
|
|
******************************************************************************/
|
|
BEGIN_MODULE_NAMESPACE(MSource)
|
|
|
|
class SeqGammaPar: Serializable
|
|
{
|
|
public:
|
|
GRID_SERIALIZABLE_CLASS_MEMBERS(SeqGammaPar,
|
|
std::string, q,
|
|
unsigned int, tA,
|
|
unsigned int, tB,
|
|
unsigned int, gamma,
|
|
std::string, mom);
|
|
};
|
|
|
|
template <typename FImpl>
|
|
class TSeqGamma: public Module<SeqGammaPar>
|
|
{
|
|
public:
|
|
TYPE_ALIASES(FImpl,);
|
|
public:
|
|
// constructor
|
|
TSeqGamma(const std::string name);
|
|
// destructor
|
|
virtual ~TSeqGamma(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(SeqGamma, TSeqGamma<FIMPL>, MSource);
|
|
|
|
/******************************************************************************
|
|
* TSeqGamma implementation *
|
|
******************************************************************************/
|
|
// constructor /////////////////////////////////////////////////////////////////
|
|
template <typename FImpl>
|
|
TSeqGamma<FImpl>::TSeqGamma(const std::string name)
|
|
: Module<SeqGammaPar>(name)
|
|
{}
|
|
|
|
// dependencies/products ///////////////////////////////////////////////////////
|
|
template <typename FImpl>
|
|
std::vector<std::string> TSeqGamma<FImpl>::getInput(void)
|
|
{
|
|
std::vector<std::string> in = {par().q};
|
|
|
|
return in;
|
|
}
|
|
|
|
template <typename FImpl>
|
|
std::vector<std::string> TSeqGamma<FImpl>::getOutput(void)
|
|
{
|
|
std::vector<std::string> out = {getName()};
|
|
|
|
return out;
|
|
}
|
|
|
|
// setup ///////////////////////////////////////////////////////////////////////
|
|
template <typename FImpl>
|
|
void TSeqGamma<FImpl>::setup(void)
|
|
{
|
|
env().template registerLattice<PropagatorField>(getName());
|
|
}
|
|
|
|
// execution ///////////////////////////////////////////////////////////////////
|
|
template <typename FImpl>
|
|
void TSeqGamma<FImpl>::execute(void)
|
|
{
|
|
if (par().tA == par().tB)
|
|
{
|
|
LOG(Message) << "Generating gamma_" << par().gamma
|
|
<< " sequential source at t= " << par().tA << std::endl;
|
|
}
|
|
else
|
|
{
|
|
LOG(Message) << "Generating gamma_" << par().gamma
|
|
<< " sequential source for "
|
|
<< par().tA << " <= t <= " << par().tB << std::endl;
|
|
}
|
|
PropagatorField &src = *env().template createLattice<PropagatorField>(getName());
|
|
PropagatorField &q = *env().template getObject<PropagatorField>(par().q);
|
|
Lattice<iScalar<vInteger>> t(env().getGrid());
|
|
LatticeComplex ph(env().getGrid()), coor(env().getGrid());
|
|
SpinMatrix g;
|
|
std::vector<Real> p;
|
|
Complex i(0.0,1.0);
|
|
|
|
g = makeGammaProd(par().gamma);
|
|
p = strToVec<Real>(par().mom);
|
|
ph = zero;
|
|
for(unsigned int mu = 0; mu < Nd; mu++)
|
|
{
|
|
LatticeCoordinate(coor, mu);
|
|
ph = ph + p[mu]*coor;
|
|
}
|
|
ph = exp(i*ph);
|
|
LatticeCoordinate(t, Tp);
|
|
src = where((t >= par().tA) and (t <= par().tB), g*ph*q, 0.*q);
|
|
}
|
|
|
|
END_MODULE_NAMESPACE
|
|
|
|
END_HADRONS_NAMESPACE
|
|
|
|
#endif // Hadrons_SeqGamma_hpp_
|