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Weak Hamiltonian Eye-type contraction execution

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This commit is contained in:
Lanny91 2017-02-01 16:33:24 +00:00
parent 74a5cda84b
commit d35d87d2c2
1 changed files with 52 additions and 0 deletions
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52
extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
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@ -88,5 +88,57 @@ void TWeakHamiltonianEye::setup(void)
// execution ///////////////////////////////////////////////////////////////////
void TWeakHamiltonianEye::execute(void)
{
XmlWriter writer(par().output);
PropagatorField &q1 = *env().template getObject<PropagatorField>(par().q1);
PropagatorField &q2 = *env().template getObject<PropagatorField>(par().q2);
PropagatorField &q3 = *env().template getObject<PropagatorField>(par().q3);
PropagatorField &q4 = *env().template getObject<PropagatorField>(par().q4);
Gamma g5 = Gamma(Gamma::Algebra::Gamma5);
LatticeComplex expbuf(env().getGrid());
std::vector<TComplex> corrbuf;
std::vector<Result> result;
unsigned int ndim = env().getNd();
PropagatorField tmp1(env().getGrid());
LatticeComplex tmp2(env().getGrid());
std::vector<PropagatorField> S_body(ndim, tmp1);
std::vector<PropagatorField> S_loop(ndim, tmp1);
std::vector<LatticeComplex> E_body(ndim, tmp2);
std::vector<LatticeComplex> E_loop(ndim, tmp2);
std::vector<std::vector<Gamma>> gL = {{Gamma(Gamma::Algebra::GammaX),
Gamma(Gamma::Algebra::GammaY),
Gamma(Gamma::Algebra::GammaZ),
Gamma(Gamma::Algebra::GammaT)},
{Gamma(Gamma::Algebra::GammaXGamma5),
Gamma(Gamma::Algebra::GammaYGamma5),
Gamma(Gamma::Algebra::GammaZGamma5),
Gamma(Gamma::Algebra::GammaTGamma5)}};
// Setup for S-type contractions.
for (int mu = 0; mu < ndim; ++mu)
{
S_body[mu] = MAKE_SE_BODY(q1, q2, q3, gL[i_V][mu]) -
MAKE_SE_BODY(q1, q2, q3, gL[i_A][mu]);
S_loop[mu] = MAKE_SE_LOOP(q4, gL[i_V][mu]) -
MAKE_SE_LOOP(q4, gL[i_A][mu]);
}
// Perform S-type contractions.
SUM_MU(expbuf, trace(S_body[mu]*S_loop[mu]))
MAKE_DIAG(expbuf, corrbuf, result[S_diag], "HW_S")
// Recycle sub-expressions for E-type contractions.
for (unsigned int mu = 0; mu < ndim; ++mu)
{
E_body[mu] = trace(S_body[mu]);
E_loop[mu] = trace(S_loop[mu]);
}
// Perform E-type contractions.
SUM_MU(expbuf, E_body[mu]*E_loop[mu])
MAKE_DIAG(expbuf, corrbuf, result[E_diag], "HW_E")
write(writer, "HW_Eye", result[S_diag]);
write(writer, "HW_Eye", result[E_diag]);
}