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2AS for every Nc!

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This commit is contained in:
Alessandro Lupo
2023-05-17 20:22:05 +01:00
parent 55f9cce577
commit 932c783fbf
3 changed files with 131 additions and 24 deletions
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10
Grid/qcd/utils/GaugeGroupTwoIndex.h
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@ -78,7 +78,7 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
template <class cplx>
static void base(int Index, iGroupMatrix<cplx> &eij) {
// returns (e)^(ij)_{kl} necessary for change of base U_F -> U_R
assert(Index < NumGenerators);
assert(Index < Dimension);
eij = Zero();
// for the linearisation of the 2 indexes
@ -89,9 +89,10 @@ class GaugeGroupTwoIndex : public GaugeGroup<ncolour, group_name> {
for (int i = 1; i < ncolour; i++) {
for (int j = 0; j < i; j++) {
a[counter][0] = i;
j = i == ngroup ? j + 1
: j; // this will only ever trigger for Sp because
// ngroup == ncolour is out of range for SU
if (j==0 && ngroup == ncolour/2 && i==ngroup+j) {
//std::cout << "skipping" << std::endl; // for Sp2n this vanishes identically.
j = j+1;
}
a[counter][1] = j;
counter++;
}
@ -320,6 +321,7 @@ typedef SU_TwoIndex<3, Symmetric> SU3TwoIndexSymm;
typedef SU_TwoIndex<4, Symmetric> SU4TwoIndexSymm;
typedef SU_TwoIndex<5, Symmetric> SU5TwoIndexSymm;
typedef SU_TwoIndex<2, AntiSymmetric> SU2TwoIndexAntiSymm;
typedef SU_TwoIndex<3, AntiSymmetric> SU3TwoIndexAntiSymm;
typedef SU_TwoIndex<4, AntiSymmetric> SU4TwoIndexAntiSymm;
typedef SU_TwoIndex<5, AntiSymmetric> SU5TwoIndexAntiSymm;