mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-20 17:25:37 +01:00
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#ifndef OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H
|
|
#define OVERLAP_WILSON_PARTFRAC_ZOLOTAREV_FERMION_H
|
|
|
|
#include <Grid.h>
|
|
|
|
namespace Grid {
|
|
|
|
namespace QCD {
|
|
|
|
class OverlapWilsonPartialFractionZolotarevFermion : public PartialFractionFermion5D
|
|
{
|
|
public:
|
|
|
|
virtual void Instantiatable(void){};
|
|
// Constructors
|
|
OverlapWilsonPartialFractionZolotarevFermion(LatticeGaugeField &_Umu,
|
|
GridCartesian &FiveDimGrid,
|
|
GridRedBlackCartesian &FiveDimRedBlackGrid,
|
|
GridCartesian &FourDimGrid,
|
|
GridRedBlackCartesian &FourDimRedBlackGrid,
|
|
RealD _mass,RealD _M5,
|
|
RealD lo,RealD hi):
|
|
|
|
// b+c=scale, b-c = 0 <=> b =c = scale/2
|
|
PartialFractionFermion5D(_Umu,
|
|
FiveDimGrid,
|
|
FiveDimRedBlackGrid,
|
|
FourDimGrid,
|
|
FourDimRedBlackGrid,_mass,_M5)
|
|
{
|
|
assert((Ls&0x1)==1); // Odd Ls required
|
|
|
|
int nrational=Ls;// Odd rational order
|
|
RealD eps = lo/hi;
|
|
|
|
Approx::zolotarev_data *zdata = Approx::zolotarev(eps,nrational,0);
|
|
SetCoefficientsZolotarev(hi,zdata);
|
|
Approx::zolotarev_free(zdata);
|
|
|
|
}
|
|
};
|
|
}
|
|
}
|
|
#endif
|