mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-16 02:35:36 +00:00
125 lines
4.1 KiB
C++
125 lines
4.1 KiB
C++
/*************************************************************************************
|
|
|
|
Grid physics library, www.github.com/paboyle/Grid
|
|
|
|
Source file: ./lib/qcd/QCD.h
|
|
|
|
Copyright (C) 2015
|
|
|
|
Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
|
|
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
|
Author: Peter Boyle <peterboyle@Peters-MacBook-Pro-2.local>
|
|
Author: neo <cossu@post.kek.jp>
|
|
Author: paboyle <paboyle@ph.ed.ac.uk>
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, write to the Free Software Foundation, Inc.,
|
|
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
|
See the full license in the file "LICENSE" in the top level distribution
|
|
directory
|
|
*************************************************************************************/
|
|
/* END LEGAL */
|
|
#ifndef GRID_LT_H
|
|
#define GRID_LT_H
|
|
namespace Grid{
|
|
|
|
// First steps in the complete generalization of the Physics part
|
|
// Design not final
|
|
namespace LatticeTheories {
|
|
|
|
template <int Dimensions>
|
|
struct LatticeTheory {
|
|
static const int Nd = Dimensions;
|
|
static const int Nds = Dimensions * 2; // double stored field
|
|
template <typename vtype>
|
|
using iSinglet = iScalar<iScalar<iScalar<vtype> > >;
|
|
};
|
|
|
|
template <int Dimensions, int Colours>
|
|
struct LatticeGaugeTheory : public LatticeTheory<Dimensions> {
|
|
static const int Nds = Dimensions * 2;
|
|
static const int Nd = Dimensions;
|
|
static const int Nc = Colours;
|
|
|
|
template <typename vtype>
|
|
using iColourMatrix = iScalar<iScalar<iMatrix<vtype, Nc> > >;
|
|
template <typename vtype>
|
|
using iLorentzColourMatrix = iVector<iScalar<iMatrix<vtype, Nc> >, Nd>;
|
|
template <typename vtype>
|
|
using iDoubleStoredColourMatrix = iVector<iScalar<iMatrix<vtype, Nc> >, Nds>;
|
|
template <typename vtype>
|
|
using iColourVector = iScalar<iScalar<iVector<vtype, Nc> > >;
|
|
};
|
|
|
|
template <int Dimensions, int Colours, int Spin>
|
|
struct FermionicLatticeGaugeTheory
|
|
: public LatticeGaugeTheory<Dimensions, Colours> {
|
|
static const int Nd = Dimensions;
|
|
static const int Nds = Dimensions * 2;
|
|
static const int Nc = Colours;
|
|
static const int Ns = Spin;
|
|
|
|
template <typename vtype>
|
|
using iSpinMatrix = iScalar<iMatrix<iScalar<vtype>, Ns> >;
|
|
template <typename vtype>
|
|
using iSpinColourMatrix = iScalar<iMatrix<iMatrix<vtype, Nc>, Ns> >;
|
|
template <typename vtype>
|
|
using iSpinVector = iScalar<iVector<iScalar<vtype>, Ns> >;
|
|
template <typename vtype>
|
|
using iSpinColourVector = iScalar<iVector<iVector<vtype, Nc>, Ns> >;
|
|
// These 2 only if Spin is a multiple of 2
|
|
static const int Nhs = Spin / 2;
|
|
template <typename vtype>
|
|
using iHalfSpinVector = iScalar<iVector<iScalar<vtype>, Nhs> >;
|
|
template <typename vtype>
|
|
using iHalfSpinColourVector = iScalar<iVector<iVector<vtype, Nc>, Nhs> >;
|
|
|
|
//tests
|
|
typedef iColourMatrix<Complex> ColourMatrix;
|
|
typedef iColourMatrix<ComplexF> ColourMatrixF;
|
|
typedef iColourMatrix<ComplexD> ColourMatrixD;
|
|
|
|
|
|
};
|
|
|
|
// Examples, not complete now.
|
|
struct QCD : public FermionicLatticeGaugeTheory<4, 3, 4> {
|
|
static const int Xp = 0;
|
|
static const int Yp = 1;
|
|
static const int Zp = 2;
|
|
static const int Tp = 3;
|
|
static const int Xm = 4;
|
|
static const int Ym = 5;
|
|
static const int Zm = 6;
|
|
static const int Tm = 7;
|
|
|
|
typedef FermionicLatticeGaugeTheory FLGT;
|
|
|
|
typedef FLGT::iSpinMatrix<Complex > SpinMatrix;
|
|
typedef FLGT::iSpinMatrix<ComplexF > SpinMatrixF;
|
|
typedef FLGT::iSpinMatrix<ComplexD > SpinMatrixD;
|
|
|
|
};
|
|
struct QED : public FermionicLatticeGaugeTheory<4, 1, 4> {//fill
|
|
};
|
|
|
|
template <int Dimensions>
|
|
struct Scalar : public LatticeTheory<Dimensions> {};
|
|
|
|
}; // LatticeTheories
|
|
|
|
} // Grid
|
|
|
|
#endif
|