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111 lines
4.5 KiB
C++
111 lines
4.5 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/qcd/action/fermion/WilsonCloverFermion.h
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Copyright (C) 2017 - 2022
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Author: Guido Cossu <guido.cossu@ed.ac.uk>
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Author: David Preti <>
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Author: Daniel Richtmann <daniel.richtmann@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#pragma once
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#include <Grid/qcd/action/fermion/WilsonCloverTypes.h>
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#include <Grid/qcd/action/fermion/WilsonCloverHelpers.h>
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#include <Grid/qcd/action/fermion/CloverHelpers.h>
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NAMESPACE_BEGIN(Grid);
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///////////////////////////////////////////////////////////////////
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// Wilson Clover
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//
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// Operator ( with anisotropy coefficients):
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//
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// Q = 1 + (Nd-1)/xi_0 + m
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// + W_t + (nu/xi_0) * W_s
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// - 1/2*[ csw_t * sum_s (sigma_ts F_ts) + (csw_s/xi_0) * sum_ss (sigma_ss F_ss) ]
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//
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// s spatial, t temporal directions.
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// where W_t and W_s are the temporal and spatial components of the
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// Wilson Dirac operator
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//
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// csw_r = csw_t to recover the isotropic version
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//////////////////////////////////////////////////////////////////
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template<class Impl, class CloverHelpers>
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class WilsonCloverFermion : public WilsonFermion<Impl>,
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public WilsonCloverHelpers<Impl>
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{
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public:
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INHERIT_IMPL_TYPES(Impl);
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INHERIT_CLOVER_TYPES(Impl);
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typedef WilsonFermion<Impl> WilsonBase;
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typedef WilsonCloverHelpers<Impl> Helpers;
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virtual int ConstEE(void) { return 0; };
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virtual void Instantiatable(void){};
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// Constructors
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WilsonCloverFermion(GaugeField &_Umu, GridCartesian &Fgrid,
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GridRedBlackCartesian &Hgrid,
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const RealD _mass,
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const RealD _csw_r = 0.0,
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const RealD _csw_t = 0.0,
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const WilsonAnisotropyCoefficients &clover_anisotropy = WilsonAnisotropyCoefficients(),
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const ImplParams &impl_p = ImplParams());
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virtual void M(const FermionField &in, FermionField &out);
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virtual void Mdag(const FermionField &in, FermionField &out);
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virtual void Mooee(const FermionField &in, FermionField &out);
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virtual void MooeeDag(const FermionField &in, FermionField &out);
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virtual void MooeeInv(const FermionField &in, FermionField &out);
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virtual void MooeeInvDag(const FermionField &in, FermionField &out);
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virtual void MooeeInternal(const FermionField &in, FermionField &out, int dag, int inv);
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//virtual void MDeriv(GaugeField &mat, const FermionField &U, const FermionField &V, int dag);
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virtual void MooDeriv(GaugeField &mat, const FermionField &U, const FermionField &V, int dag);
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virtual void MeeDeriv(GaugeField &mat, const FermionField &U, const FermionField &V, int dag);
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void ImportGauge(const GaugeField &_Umu);
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// Derivative parts unpreconditioned pseudofermions
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void MDeriv(GaugeField &force, const FermionField &X, const FermionField &Y, int dag);
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public:
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// here fixing the 4 dimensions, make it more general?
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RealD csw_r; // Clover coefficient - spatial
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RealD csw_t; // Clover coefficient - temporal
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RealD diag_mass; // Mass term
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CloverField CloverTerm, CloverTermInv; // Clover term
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CloverField CloverTermEven, CloverTermOdd; // Clover term EO
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CloverField CloverTermInvEven, CloverTermInvOdd; // Clover term Inv EO
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CloverField CloverTermDagEven, CloverTermDagOdd; // Clover term Dag EO
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CloverField CloverTermInvDagEven, CloverTermInvDagOdd; // Clover term Inv Dag EO
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};
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NAMESPACE_END(Grid);
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