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First conserved current implementation for Wilson fermions only. Not implemented for Gparity or 5D-vectorised Wilson fermions.

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Lanny91
2017-04-25 18:00:24 +01:00
parent 1425afc72f
commit 44260643f6
12 changed files with 365 additions and 0 deletions
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47
lib/qcd/action/fermion/WilsonFermion.cc
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@ -347,6 +347,53 @@ void WilsonFermion<Impl>::DhopInternal(StencilImpl &st, LebesgueOrder &lo,
}
};
/*******************************************************************************
* Conserved current utilities for Wilson fermions, for contracting propagators
* to make a conserved current sink or inserting the conserved current
* sequentially.
******************************************************************************/
template <class Impl>
void WilsonFermion<Impl>::ContractConservedCurrent(PropagatorField &q_in_1,
PropagatorField &q_in_2,
PropagatorField &q_out,
Current curr_type,
unsigned int mu)
{
Gamma g5(Gamma::Algebra::Gamma5);
conformable(_grid, q_in_1._grid);
conformable(_grid, q_in_2._grid);
conformable(_grid, q_out._grid);
Kernels::ContractConservedCurrentInternal(q_in_1, q_in_2, q_out,
Umu, curr_type, mu);
}
template <class Impl>
void WilsonFermion<Impl>::SeqConservedCurrent(PropagatorField &q_in,
PropagatorField &q_out,
Current curr_type,
unsigned int mu,
std::vector<Real> mom,
unsigned int tmin,
unsigned int tmax)
{
conformable(_grid, q_in._grid);
conformable(_grid, q_out._grid);
Lattice<iSinglet<Simd>> ph(_grid), coor(_grid);
Complex i(0.0,1.0);
// Momentum projection
ph = zero;
for(unsigned int mu = 0; mu < Nd - 1; mu++)
{
LatticeCoordinate(coor, mu);
ph = ph + mom[mu]*coor*((1./(_grid->_fdimensions[mu])));
}
ph = exp((Real)(2*M_PI)*i*ph);
Kernels::SeqConservedCurrentInternal(q_in, q_out, Umu, curr_type, mu, ph,
tmin, tmax);
}
FermOpTemplateInstantiate(WilsonFermion);
AdjointFermOpTemplateInstantiate(WilsonFermion);
TwoIndexFermOpTemplateInstantiate(WilsonFermion);