gaus_quark_smearing.h

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// -*- C++ -*-
/*! \file
 *  \brief Gaussian smearing of color std::vector and propagator
 */
 
#ifndef __gaus_quark_smearing_h__
#define __gaus_quark_smearing_h__
 
#include "meas/smear/quark_smearing.h"
 
namespace Chroma 
{
  //! Name and registration
  /*! @ingroup smear */
  namespace GausQuarkSmearingEnv
  {
    bool registerAll();
 
    //! Return the name
    std::string getName();
 
    //! Params for Gauss quark smearing
    /*! @ingroup smear */
    struct Params
    {
      Params() {}
      Params(XMLReader& in, const std::string& path);
      void writeXML(XMLWriter& in, const std::string& path) const;
    
      Real wvf_param;                   /*!< Smearing width */
      int  wvfIntPar;                   /*!< Number of smearing hits */
      int  no_smear_dir;                /*!< No smearing in this direction */
    };
 
 
    //! Gaussian quark smearing
    /*! @ingroup smear
     *
     * Gaussian quark smearing object
     */
    template<typename T>
    class QuarkSmear : public QuarkSmearing<T>
    {
    public:
      //! Full constructor
      QuarkSmear(const Params& p) : params(p) {}
      
      //! Smear the quark
      void operator()(T& quark, const multi1d<LatticeColorMatrix>& u) const;
 
    private:
      //! Hide partial constructor
      QuarkSmear() {}
 
    private:
      Params  params;   /*!< smearing params */
    };
 
  }  // end namespace
 
  //! Reader
  /*! @ingroup smear */
  void read(XMLReader& xml, const std::string& path, GausQuarkSmearingEnv::Params& param);
 
  //! Writer
  /*! @ingroup smear */
  void write(XMLWriter& xml, const std::string& path, const GausQuarkSmearingEnv::Params& param);
 
}  // end namespace Chroma
 
#endif