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gamma matrices as input

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This commit is contained in:
Felix Erben
2019-07-18 17:46:43 +01:00
parent 9d82855c5d
commit 56cefadf9b
2 changed files with 27 additions and 6 deletions
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13
Grid/qcd/utils/BaryonUtils.h
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@ -24,6 +24,8 @@ public:
static void ContractBaryons(const PropagatorField &q1,
const PropagatorField &q2,
const PropagatorField &q3,
const Gamma GammaA,
const Gamma GammaB,
ComplexField &baryon_corr);
};
@ -33,19 +35,22 @@ template<class FImpl>
void BaryonUtils<FImpl>::ContractBaryons(const PropagatorField &q1,
const PropagatorField &q2,
const PropagatorField &q3,
const Gamma GammaA,
const Gamma GammaB,
ComplexField &baryon_corr)
{
GridBase *grid = q1._grid;
// C = i gamma_2 gamma_4 => C gamma_5 = - i gamma_1 gamma_3
Gamma GammaA(Gamma::Algebra::Identity); //Still hardcoded 1
Gamma GammaB(Gamma::Algebra::SigmaXZ); //Still hardcoded Cg5
//Gamma GammaA(Gamma::Algebra::Identity); //Still hardcoded 1
//Gamma GammaB(Gamma::Algebra::SigmaXZ); //Still hardcoded Cg5
//Gamma GammaB(Gamma::Algebra::GammaZGamma5); //Still hardcoded CgX = i gamma_3 gamma_5
Gamma g4(Gamma::Algebra::GammaT); //needed for parity P_\pm = 0.5*(1 \pm \gamma_4)
std::vector<std::vector<int>> epsilon = {{0,1,2},{1,2,0},{2,0,1},{0,2,1},{2,1,0},{1,0,2}};
std::vector<int> epsilon_sgn = {1,1,1,-1,-1,-1};
char left[] = "uud";
char right[] = "uud";
char left[] = "sss";
char right[] = "sss";
std::vector<int> wick_contraction = {0,0,0,0,0,0};
for (int ie=0; ie < 6 ; ie++)