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