portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-14 22:07:05 +01:00
Code Releases Activity

QedFVol: Add input parameter G(x=0) for infinite-volume photon

Browse Source
This commit is contained in:
James Harrison
2018-02-23 14:53:05 +00:00
parent 8e61286741
commit ec3954ff5f
4 changed files with 11 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
lib/qcd/action/gauge/Photon.h
View File

@ -60,7 +60,7 @@ namespace QCD{
GRID_SERIALIZABLE_ENUM(Gauge, undef, feynman, 1, coulomb, 2, landau, 3);
GRID_SERIALIZABLE_ENUM(ZmScheme, undef, qedL, 1, qedTL, 2, qedInf, 3);
public:
Photon(Gauge gauge, ZmScheme zmScheme, std::vector<Real> improvements);
Photon(Gauge gauge, ZmScheme zmScheme, std::vector<Real> improvements, Real G0);
virtual ~Photon(void) = default;
void FreePropagator(const GaugeField &in, GaugeField &out);
void MomentumSpacePropagator(const GaugeField &in, GaugeField &out);
@ -77,13 +77,15 @@ namespace QCD{
Gauge gauge_;
ZmScheme zmScheme_;
std::vector<Real> improvement_;
Real G0_;
};
typedef Photon<QedGimplR> PhotonR;
template<class Gimpl>
Photon<Gimpl>::Photon(Gauge gauge, ZmScheme zmScheme, std::vector<Real> improvements)
: gauge_(gauge), zmScheme_(zmScheme), improvement_(improvements)
Photon<Gimpl>::Photon(Gauge gauge, ZmScheme zmScheme,
std::vector<Real> improvements, Real G0)
: gauge_(gauge), zmScheme_(zmScheme), improvement_(improvements), G0_(G0)
{}
template<class Gimpl>
@ -109,7 +111,7 @@ namespace QCD{
std::vector<int> &l = grid->_fdimensions;
std::vector<int> x0(nd,0);
TComplex Tone = Complex(1.0,0.0);
// TComplex Tzero = Complex(0.0,0.0);
TComplex Tzero = Complex(G0_,0.0);
FFT fft(grid);
one = Complex(1.0,0.0);
@ -123,7 +125,7 @@ namespace QCD{
}
pokeSite(Tone, out, x0);
out = one/out;
// pokeSite(Tzero, out, x0);
pokeSite(Tzero, out, x0);
fft.FFT_all_dim(out, out, FFT::forward);
}