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Implemented tadpole operator for Shamir action.

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This commit is contained in:
Andrew Zhen Ning Yong 2021-04-06 13:45:37 +01:00
parent 8bdadbadac
commit addeb621a7
1 changed files with 13 additions and 1 deletions
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14
Grid/qcd/action/fermion/implementation/CayleyFermion5DImplementation.h
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@ -880,11 +880,23 @@ void CayleyFermion5D<Impl>::SeqConservedCurrent(PropagatorField &q_in,
}
std::vector<RealD> G_s(Ls,1.0);
Integer sign = 1; // sign flip for vector/tadpole
if ( curr_type == Current::Axial ) {
for(int s=0;s<Ls/2;s++){
G_s[s] = -1.0;
}
}
else if ( curr_type == Current::Tadpole ) {
auto b=this->_b;
auto c=this->_c;
if ( b == 1 && c == 0 ) {
sign = -1;
}
else {
std::cerr << "Error: Tadpole implementation currently unavailable for non-Shamir actions." << std::endl;
assert(b==1 && c==0);
}
}
for(int s=0;s<Ls;s++){
@ -907,7 +919,7 @@ void CayleyFermion5D<Impl>::SeqConservedCurrent(PropagatorField &q_in,
tmp = Cshift(tmp,mu,1);
Impl::multLinkField(Utmp,this->Umu,tmp,mu);
tmp = G_s[s]*( Utmp*ph - gmu*Utmp*ph ); // Forward hop
tmp = sign*G_s[s]*( Utmp*ph - gmu*Utmp*ph ); // Forward hop
tmp = where((lcoor>=tmin),tmp,zz); // Mask the time
L_Q = where((lcoor<=tmax),tmp,zz); // Position of current complicated