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Merge pull request #79 from jch1g10/feature/qed-fvol

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Fixed bug in ChargedProp
This commit is contained in:
Antonin Portelli 2017-01-26 19:49:14 -08:00 committed by GitHub
commit 161ed102a5
1 changed files with 28 additions and 15 deletions
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43
extras/Hadrons/Modules/MScalar/ChargedProp.cc
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@ -123,18 +123,22 @@ void TChargedProp::execute(void)
// G*F*Src
prop = GFSrc;
// - q*G*momD1*G*F*Src (momD1 = F*D1*Finv)
buf = GFSrc;
momD1(buf, fft);
buf = G*buf;
prop = prop - q*buf;
// + q^2*G*momD1*G*momD1*G*F*Src (here buf = G*momD1*G*F*Src)
momD1(buf, fft);
prop = prop + q*q*G*buf;
// + q^2*G*momD2*G*F*Src (momD1 = F*D2*Finv)
// - q^2*G*momD2*G*F*Src (momD2 = F*D2*Finv)
buf = GFSrc;
momD2(buf, fft);
prop = prop + q*q*G*buf;
prop = prop - q*q*G*buf;
// final FT
fft.FFT_all_dim(prop, prop, FFT::backward);
@ -147,7 +151,7 @@ void TChargedProp::execute(void)
LOG(Message) << "Saving zero-momentum projection to '"
<< filename << "'..." << std::endl;
TextWriter writer(filename);
Hdf5Writer writer(filename);
std::vector<TComplex> vecBuf;
std::vector<Complex> result;
@ -157,6 +161,7 @@ void TChargedProp::execute(void)
{
result[t] = TensorRemove(vecBuf[t]);
}
write(writer, "charge", q);
write(writer, "prop", result);
}
}
@ -164,16 +169,18 @@ void TChargedProp::execute(void)
void TChargedProp::momD1(ScalarField &s, FFT &fft)
{
EmField &A = *env().getObject<EmField>(par().emField);
ScalarField buf(env().getGrid()), Amu(env().getGrid());
ScalarField buf(env().getGrid()), fs(env().getGrid()), result(env().getGrid()), Amu(env().getGrid());
Complex ci(0.0,1.0);
result = zero;
fft.FFT_all_dim(fs, s, FFT::backward);
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
Amu = peekLorentz(A, mu);
fft.FFT_all_dim(buf, s, FFT::backward);
buf = Amu*buf;
buf = Amu*fs;
fft.FFT_all_dim(buf, buf, FFT::forward);
s = s + ci*adj(*phase_[mu])*buf;
result = result + ci*adj(*phase_[mu])*buf;
}
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
@ -182,22 +189,26 @@ void TChargedProp::momD1(ScalarField &s, FFT &fft)
fft.FFT_all_dim(buf, buf, FFT::backward);
buf = Amu*buf;
fft.FFT_all_dim(buf, buf, FFT::forward);
s = s - ci*buf;
result = result - ci*buf;
}
s = result;
}
void TChargedProp::momD2(ScalarField &s, FFT &fft)
{
EmField &A = *env().getObject<EmField>(par().emField);
ScalarField buf(env().getGrid()), Amu(env().getGrid());
ScalarField buf(env().getGrid()), fs(env().getGrid()), result(env().getGrid()), Amu(env().getGrid());
result = zero;
fft.FFT_all_dim(fs, s, FFT::backward);
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
Amu = peekLorentz(A, mu);
fft.FFT_all_dim(buf, s, FFT::backward);
buf = Amu*Amu*buf;
Amu = peekLorentz(A, mu);
buf = Amu*Amu*fs;
fft.FFT_all_dim(buf, buf, FFT::forward);
s = s + .5*adj(*phase_[mu])*buf;
result = result + .5*adj(*phase_[mu])*buf;
}
for (unsigned int mu = 0; mu < env().getNd(); ++mu)
{
@ -206,6 +217,8 @@ void TChargedProp::momD2(ScalarField &s, FFT &fft)
fft.FFT_all_dim(buf, buf, FFT::backward);
buf = Amu*Amu*buf;
fft.FFT_all_dim(buf, buf, FFT::forward);
s = s + .5*buf;
result = result + .5*buf;
}
s = result;
}