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add ProjectOnGaugeGroup and ProjectGn to allow future templating in GaugeImplTypes

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This commit is contained in:
Alessandro Lupo 2023-03-10 12:10:46 +00:00
parent f51222086c
commit fd057c838f
3 changed files with 109 additions and 0 deletions
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27
Grid/qcd/utils/GaugeGroup.h
View File

@ -244,6 +244,29 @@ class GaugeGroup {
ex = ex + xn * nfac; // x2/2!, x3/3!....
}
}
template <int N> // reunitarise, resimplectify...
static void ProjectOnGaugeGroup(Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U) {
ProjectOnGaugeGroup(U, group_name());
}
template <int N> // reunitarise, resimplectify...
static void ProjectOnGaugeGroup(Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu) {
ProjectOnGaugeGroup(Umu, group_name());
}
template <int N> // reunitarise, resimplectify... previously ProjectSUn
static void ProjectGn(Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu) {
ProjectGn(Umu, group_name());
}
template <int N> // reunitarise, resimplectify... previously ProjectSUn
static void ProjectGn(Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U) {
ProjectGn(U, group_name());
}
};
template <int N>
@ -271,6 +294,8 @@ LatticeComplexD Determinant(
});
return ret;
}
template <int N>
static void ProjectSUn(
Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu) {
@ -285,6 +310,7 @@ static void ProjectSUn(
PokeIndex<ColourIndex>(Umu, element, Nc - 1, i);
}
}
template <int N>
static void ProjectSUn(
Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U) {
@ -297,6 +323,7 @@ static void ProjectSUn(
PokeIndex<LorentzIndex>(U, Umu, mu);
}
}
// Explicit specialisation for SU(3).
// Explicit specialisation for SU(3).
static void ProjectSU3(

41
Grid/qcd/utils/SUn.impl
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@ -621,6 +621,47 @@ static void projectOnAlgebra(LatticeAlgebraVector &h_out,
}
}
template <int N>
static void ProjectOnGaugeGroup(Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu, GroupName::SU) {
Umu = ProjectOnGroup(Umu);
}
template <int N>
static void ProjectOnGaugeGroup(Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U, GroupName::SU) {
GridBase *grid = U.Grid();
// Reunitarise
for (int mu = 0; mu < Nd; mu++) {
auto Umu = PeekIndex<LorentzIndex>(U, mu);
Umu = ProjectOnGroup(Umu);
}
}
template <int N>
static void ProjectGn(Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu, GroupName::SU) {
Umu = ProjectOnGroup(Umu);
auto det = Determinant(Umu);
det = conjugate(det);
for (int i = 0; i < N; i++) {
auto element = PeekIndex<ColourIndex>(Umu, N - 1, i);
element = element * det;
PokeIndex<ColourIndex>(Umu, element, Nc - 1, i);
}
}
template <int N>
static void ProjectGn(Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U, GroupName::SU) {
GridBase *grid = U.Grid();
// Reunitarise
for (int mu = 0; mu < Nd; mu++) {
auto Umu = PeekIndex<LorentzIndex>(U, mu);
Umu = ProjectOnGroup(Umu);
ProjectSUn(Umu);
PokeIndex<LorentzIndex>(U, Umu, mu);
}
}
/*
* Fundamental rep gauge xform
*/

41
Grid/qcd/utils/Sp2n.impl
View File

@ -366,6 +366,47 @@ static void TepidConfiguration(GridParallelRNG &pRNG, GaugeField &out, GroupName
}
}
template <int N>
static void ProjectOnGaugeGroup(Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu, GroupName::Sp) {
Umu = ProjectOnSpGroup(Umu);
}
template <int N>
static void ProjectOnGaugeGroup(Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U, GroupName::Sp) {
GridBase *grid = U.Grid();
// Reunitarise
for (int mu = 0; mu < Nd; mu++) {
auto Umu = PeekIndex<LorentzIndex>(U, mu);
Umu = ProjectOnSpGroup(Umu);
}
}
template <int N>
static void ProjectGn(Lattice<iScalar<iScalar<iMatrix<vComplexD, N> > > > &Umu, GroupName::Sp) {
Umu = ProjectOnSpGroup(Umu);
auto det = Determinant(Umu);
det = conjugate(det);
for (int i = 0; i < N; i++) {
auto element = PeekIndex<ColourIndex>(Umu, N - 1, i);
element = element * det;
PokeIndex<ColourIndex>(Umu, element, Nc - 1, i);
}
}
template <int N>
static void ProjectGn(Lattice<iVector<iScalar<iMatrix<vComplexD, N> >, Nd> > &U, GroupName::Sp) {
GridBase *grid = U.Grid();
// Reunitarise
for (int mu = 0; mu < Nd; mu++) {
auto Umu = PeekIndex<LorentzIndex>(U, mu);
Umu = ProjectOnSpGroup(Umu);
ProjectSUn(Umu);
PokeIndex<LorentzIndex>(U, Umu, mu);
}
}
public:
template <ONLY_IF_Sp>
static void OmegaInvariance(ColourMatrix &in) {