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Grid/lib/qcd/representations/fundamental.h
2018-01-14 22:15:55 +00:00

52 lines
1.2 KiB
C++

/*
* Policy classes for the HMC
* Author: Guido Cossu
*/
#ifndef FUNDAMENTAL_H
#define FUNDAMENTAL_H
NAMESPACE_BEGIN(Grid);
/*
* This is an helper class for the HMC
* Empty since HMC updates already the fundamental representation
*/
template <int ncolour>
class FundamentalRep {
public:
static const int Dimension = ncolour;
// typdef to be used by the Representations class in HMC to get the
// types for the higher representation fields
typedef typename SU<ncolour>::LatticeMatrix LatticeMatrix;
typedef LatticeGaugeField LatticeField;
explicit FundamentalRep(GridBase* grid) {} //do nothing
void update_representation(const LatticeGaugeField& Uin) {} // do nothing
LatticeField RtoFundamentalProject(const LatticeField& in, Real scale = 1.0) const{
return (scale * in);
}
};
template<class Field>
class EmptyRep {
public:
typedef Field LatticeField;
explicit EmptyRep(GridBase* grid) {} //do nothing
void update_representation(const LatticeField& Uin) {} // do nothing
LatticeField RtoFundamentalProject(const LatticeField& in, Real scale = 1.0) const{}// do nothing
};
typedef FundamentalRep<Nc> FundamentalRepresentation;
NAMESPACE_END(Grid);
#endif