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Grid/lib/qcd/action/fermion/MobiusFermion.h
Peter Boyle 5916386242 Mobius Caley form, Mobius Zolotarev operators. Pass Even Odd vs unprec test and hermiticity checks
in tests/Grid_any_evenodd.cc; will work on inversion tests shortly.
2015-06-03 09:36:26 +01:00

47 lines
1006 B
C++

#ifndef GRID_QCD_MOBIUS_FERMION_H
#define GRID_QCD_MOBIUS_FERMION_H
#include <Grid.h>
namespace Grid {
namespace QCD {
class MobiusFermion : public CayleyFermion5D
{
public:
// Constructors
MobiusFermion(LatticeGaugeField &_Umu,
GridCartesian &FiveDimGrid,
GridRedBlackCartesian &FiveDimRedBlackGrid,
GridCartesian &FourDimGrid,
GridRedBlackCartesian &FourDimRedBlackGrid,
RealD _mass,RealD _M5,
RealD b, RealD c) :
CayleyFermion5D(_Umu,
FiveDimGrid,
FiveDimRedBlackGrid,
FourDimGrid,
FourDimRedBlackGrid,_mass,_M5)
{
RealD eps = 1.0;
std::cout << "MobiusFermion (b="<<b<<",c="<<c<<") with Ls= "<<Ls<<" Tanh approx"<<std::endl;
Approx::zolotarev_data *zdata = Approx::grid_higham(eps,this->Ls);// eps is ignored for higham
assert(zdata->n==this->Ls);
// Call base setter
this->CayleyFermion5D::SetCoefficients(1.0,zdata,b,c);
}
};
}
}
#endif