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50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
#ifndef GRID_QCD_MOBIUS_ZOLOTAREV_FERMION_H
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#define GRID_QCD_MOBIUS_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 MobiusZolotarevFermion : public CayleyFermion5D
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{
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public:
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// Constructors
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MobiusZolotarevFermion(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 b, RealD c,
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RealD lo, RealD hi) :
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CayleyFermion5D(_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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RealD eps = lo/hi;
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Approx::zolotarev_data *zdata = Approx::grid_zolotarev(eps,this->Ls,0);// eps is ignored for higham
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assert(zdata->n==this->Ls);
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std::cout << "MobiusZolotarevFermion (b="<<b<<",c="<<c<<") with Ls= "<<Ls<<" Zolotarev range ["<<lo<<","<<hi<<"]"<<std::endl;
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std::cout << "MobiusZolotarevFermion : note there is a degeneracy between (b+c) and Zolo param hi"<<std::endl;
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// Call base setter
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this->CayleyFermion5D::SetCoefficients(1.0,zdata,b,c);
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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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