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Hadrons: sink smearing compatibility for 3pt contraction modules.

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This commit is contained in:
Lanny91 2017-07-16 13:43:25 +01:00
parent 852ade029a
commit 6293d438cd
3 changed files with 34 additions and 14 deletions
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22
extras/Hadrons/Modules/MContraction/Gamma3pt.hpp
View File

@ -51,6 +51,14 @@ BEGIN_HADRONS_NAMESPACE
* q1
*
* trace(g5*q1*adj(q2)*g5*gamma*q3)
*
* options:
* - q1: sink smeared propagator, source at i
* - q2: propagator, source at i
* - q3: propagator, source at f
* - gamma: gamma matrix to insert
* - tSnk: sink position for propagator q1.
*
*/
/******************************************************************************
@ -66,6 +74,7 @@ public:
std::string, q2,
std::string, q3,
Gamma::Algebra, gamma,
unsigned int, tSnk,
std::string, output);
};
@ -140,17 +149,22 @@ void TGamma3pt<FImpl1, FImpl2, FImpl3>::execute(void)
<< par().q3 << "', with " << par().gamma << " insertion."
<< std::endl;
// Initialise variables. q2 and q3 are normal propagators, q1 may be
// sink smeared.
CorrWriter writer(par().output);
PropagatorField1 &q1 = *env().template getObject<PropagatorField1>(par().q1);
SlicedPropagator1 &q1 = *env().template getObject<SlicedPropagator1>(par().q1);
PropagatorField2 &q2 = *env().template getObject<PropagatorField2>(par().q2);
PropagatorField3 &q3 = *env().template getObject<PropagatorField3>(par().q3);
PropagatorField3 &q3 = *env().template getObject<PropagatorField2>(par().q3);
LatticeComplex c(env().getGrid());
Gamma g5(Gamma::Algebra::Gamma5);
Gamma gamma(par().gamma);
std::vector<TComplex> buf;
Result result;
c = trace(g5*q1*adj(q2)*(g5*gamma)*q3);
// Extract relevant timeslice of sinked propagator q1, then contract &
// sum over all spacial positions of gamma insertion.
SitePropagator1 q1Snk = q1[par().tSnk];
c = trace(g5*q1Snk*adj(q2)*(g5*gamma)*q3);
sliceSum(c, buf, Tp);
result.gamma = par().gamma;

1
extras/Hadrons/Modules/MContraction/WeakHamiltonian.hpp
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@ -76,6 +76,7 @@ public:
std::string, q2,
std::string, q3,
std::string, q4,
unsigned int, tSnk,
std::string, output);
};

25
extras/Hadrons/Modules/MContraction/WeakHamiltonianEye.cc
View File

@ -54,6 +54,8 @@ using namespace MContraction;
*
* S: trace(q3*g5*q1*adj(q2)*g5*gL[mu][p_1]*q4*gL[mu][p_2])
* E: trace(q3*g5*q1*adj(q2)*g5*gL[mu][p_1])*trace(q4*gL[mu][p_2])
*
* Note q1 must be sink smeared.
*/
/******************************************************************************
@ -94,15 +96,15 @@ void TWeakHamiltonianEye::execute(void)
<< "'." << std::endl;
CorrWriter 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(n_eye_diag);
unsigned int ndim = env().getNd();
SlicedPropagator &q1 = *env().template getObject<SlicedPropagator>(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(n_eye_diag);
unsigned int ndim = env().getNd();
PropagatorField tmp1(env().getGrid());
LatticeComplex tmp2(env().getGrid());
@ -111,10 +113,13 @@ void TWeakHamiltonianEye::execute(void)
std::vector<LatticeComplex> E_body(ndim, tmp2);
std::vector<LatticeComplex> E_loop(ndim, tmp2);
// Get sink timeslice of q1.
SitePropagator q1Snk = q1[par().tSnk];
// Setup for S-type contractions.
for (int mu = 0; mu < ndim; ++mu)
{
S_body[mu] = MAKE_SE_BODY(q1, q2, q3, GammaL(Gamma::gmu[mu]));
S_body[mu] = MAKE_SE_BODY(q1Snk, q2, q3, GammaL(Gamma::gmu[mu]));
S_loop[mu] = MAKE_SE_LOOP(q4, GammaL(Gamma::gmu[mu]));
}