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Added methods to compute spatial plaquette and timeslice spatial plaquette to WilsonLoops

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This commit is contained in:
Christopher Kelly 2022-01-24 13:57:39 -05:00
parent aa620ca52c
commit 6755dc57f8
1 changed files with 50 additions and 0 deletions
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50
Grid/qcd/utils/WilsonLoops.h
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@ -125,6 +125,56 @@ public:
return sumplaq / vol / faces / Nc; // Nd , Nc dependent... FIXME
}
//////////////////////////////////////////////////
// sum over all spatial planes of plaquette
//////////////////////////////////////////////////
static void siteSpatialPlaquette(ComplexField &Plaq,
const std::vector<GaugeMat> &U) {
ComplexField sitePlaq(U[0].Grid());
Plaq = Zero();
for (int mu = 1; mu < Nd-1; mu++) {
for (int nu = 0; nu < mu; nu++) {
traceDirPlaquette(sitePlaq, U, mu, nu);
Plaq = Plaq + sitePlaq;
}
}
}
////////////////////////////////////
// sum over all x,y,z and over all spatial planes of plaquette
//////////////////////////////////////////////////
static std::vector<RealD> timesliceSumSpatialPlaquette(const GaugeLorentz &Umu) {
std::vector<GaugeMat> U(Nd, Umu.Grid());
// inefficient here
for (int mu = 0; mu < Nd; mu++) {
U[mu] = PeekIndex<LorentzIndex>(Umu, mu);
}
ComplexField Plaq(Umu.Grid());
siteSpatialPlaquette(Plaq, U);
typedef typename ComplexField::scalar_object sobj;
std::vector<sobj> Tq;
sliceSum(Plaq, Tq, Nd-1);
std::vector<Real> out(Tq.size());
for(int t=0;t<Tq.size();t++) out[t] = TensorRemove(Tq[t]).real();
return out;
}
//////////////////////////////////////////////////
// average over all x,y,z and over all spatial planes of plaquette
//////////////////////////////////////////////////
static std::vector<RealD> timesliceAvgSpatialPlaquette(const GaugeLorentz &Umu) {
std::vector<RealD> sumplaq = timesliceSumSpatialPlaquette(Umu);
int Lt = Umu.Grid()->FullDimensions()[Nd-1];
assert(sumplaq.size() == Lt);
double vol = Umu.Grid()->gSites() / Lt;
double faces = (1.0 * (Nd - 1)* (Nd - 2)) / 2.0;
for(int t=0;t<Lt;t++)
sumplaq[t] = sumplaq[t] / vol / faces / Nc; // Nd , Nc dependent... FIXME
return sumplaq;
}
//////////////////////////////////////////////////
// average over all x,y,z the temporal loop