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paboyle 2018-01-14 22:52:22 +00:00
parent 7828887604
commit c2b0e0269a
1 changed files with 138 additions and 138 deletions
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100
lib/qcd/action/gauge/Photon.h
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@ -23,17 +23,17 @@
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 QCD_PHOTON_ACTION_H
#define QCD_PHOTON_ACTION_H
namespace Grid{
namespace QCD{
template <class S>
class QedGimpl
{
public:
NAMESPACE_BEGIN(Grid);
template <class S>
class QedGimpl
{
public:
typedef S Simd;
template <typename vtype>
@ -48,18 +48,18 @@ namespace QCD{
typedef Lattice<SiteLink> LinkField;
typedef Lattice<SiteField> Field;
typedef Field ComplexField;
};
};
typedef QedGimpl<vComplex> QedGimplR;
typedef QedGimpl<vComplex> QedGimplR;
template<class Gimpl>
class Photon
{
public:
template<class Gimpl>
class Photon
{
public:
INHERIT_GIMPL_TYPES(Gimpl);
GRID_SERIALIZABLE_ENUM(Gauge, undef, feynman, 1, coulomb, 2, landau, 3);
GRID_SERIALIZABLE_ENUM(ZmScheme, undef, qedL, 1, qedTL, 2);
public:
public:
Photon(Gauge gauge, ZmScheme zmScheme);
virtual ~Photon(void) = default;
void FreePropagator(const GaugeField &in, GaugeField &out);
@ -68,24 +68,24 @@ namespace QCD{
void StochasticField(GaugeField &out, GridParallelRNG &rng);
void StochasticField(GaugeField &out, GridParallelRNG &rng,
const GaugeLinkField &weight);
private:
private:
void invKHatSquared(GaugeLinkField &out);
void zmSub(GaugeLinkField &out);
private:
private:
Gauge gauge_;
ZmScheme zmScheme_;
};
};
typedef Photon<QedGimplR> PhotonR;
typedef Photon<QedGimplR> PhotonR;
template<class Gimpl>
Photon<Gimpl>::Photon(Gauge gauge, ZmScheme zmScheme)
template<class Gimpl>
Photon<Gimpl>::Photon(Gauge gauge, ZmScheme zmScheme)
: gauge_(gauge), zmScheme_(zmScheme)
{}
{}
template<class Gimpl>
void Photon<Gimpl>::FreePropagator (const GaugeField &in,GaugeField &out)
{
template<class Gimpl>
void Photon<Gimpl>::FreePropagator (const GaugeField &in,GaugeField &out)
{
FFT theFFT(in._grid);
GaugeField in_k(in._grid);
@ -94,11 +94,11 @@ namespace QCD{
theFFT.FFT_all_dim(in_k,in,FFT::forward);
MomentumSpacePropagator(prop_k,in_k);
theFFT.FFT_all_dim(out,prop_k,FFT::backward);
}
}
template<class Gimpl>
void Photon<Gimpl>::invKHatSquared(GaugeLinkField &out)
{
template<class Gimpl>
void Photon<Gimpl>::invKHatSquared(GaugeLinkField &out)
{
GridBase *grid = out._grid;
GaugeLinkField kmu(grid), one(grid);
const unsigned int nd = grid->_ndimension;
@ -120,11 +120,11 @@ namespace QCD{
pokeSite(Tone, out, zm);
out = one/out;
pokeSite(Tzero, out, zm);
}
}
template<class Gimpl>
void Photon<Gimpl>::zmSub(GaugeLinkField &out)
{
template<class Gimpl>
void Photon<Gimpl>::zmSub(GaugeLinkField &out)
{
GridBase *grid = out._grid;
const unsigned int nd = grid->_ndimension;
@ -157,12 +157,12 @@ namespace QCD{
default:
break;
}
}
}
template<class Gimpl>
void Photon<Gimpl>::MomentumSpacePropagator(const GaugeField &in,
template<class Gimpl>
void Photon<Gimpl>::MomentumSpacePropagator(const GaugeField &in,
GaugeField &out)
{
{
GridBase *grid = out._grid;
LatticeComplex k2Inv(grid);
@ -170,11 +170,11 @@ namespace QCD{
zmSub(k2Inv);
out = in*k2Inv;
}
}
template<class Gimpl>
void Photon<Gimpl>::StochasticWeight(GaugeLinkField &weight)
{
template<class Gimpl>
void Photon<Gimpl>::StochasticWeight(GaugeLinkField &weight)
{
auto *grid = dynamic_cast<GridCartesian *>(weight._grid);
const unsigned int nd = grid->_ndimension;
std::vector<int> latt_size = grid->_fdimensions;
@ -187,22 +187,22 @@ namespace QCD{
invKHatSquared(weight);
weight = sqrt(vol*real(weight));
zmSub(weight);
}
}
template<class Gimpl>
void Photon<Gimpl>::StochasticField(GaugeField &out, GridParallelRNG &rng)
{
template<class Gimpl>
void Photon<Gimpl>::StochasticField(GaugeField &out, GridParallelRNG &rng)
{
auto *grid = dynamic_cast<GridCartesian *>(out._grid);
GaugeLinkField weight(grid);
StochasticWeight(weight);
StochasticField(out, rng, weight);
}
}
template<class Gimpl>
void Photon<Gimpl>::StochasticField(GaugeField &out, GridParallelRNG &rng,
template<class Gimpl>
void Photon<Gimpl>::StochasticField(GaugeField &out, GridParallelRNG &rng,
const GaugeLinkField &weight)
{
{
auto *grid = dynamic_cast<GridCartesian *>(out._grid);
const unsigned int nd = grid->_ndimension;
GaugeLinkField r(grid);
@ -218,7 +218,7 @@ namespace QCD{
fft.FFT_all_dim(out, aTilde, FFT::backward);
out = real(out);
}
}
// template<class Gimpl>
// void Photon<Gimpl>::FeynmanGaugeMomentumSpacePropagator_L(GaugeField &out,
// const GaugeField &in)
@ -282,5 +282,5 @@ namespace QCD{
// out = in*denom;
// };
}}
NAMESPACE_END(Grid);
#endif