baryon_operator.h

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// -*- C++ -*-
/*! \file
 *  \brief Construct baryon operator
 */
 
#ifndef __baryon_operator_h__
#define __baryon_operator_h__
 
#include "chromabase.h"
 
namespace Chroma
{
  //! Construct baryon operators
  /*! @ingroup hadron
   *
   */
  template<typename T>
  class BaryonOperator
  {
  public:
    //! Virtual destructor to help with cleanup;
    virtual ~BaryonOperator() {}
 
    //! Construct the operator (do the contractions)
    virtual multi1d<LatticeComplex> operator()(const T& quark1, 
                                               const T& quark2, 
                                               const T& quark3,
                                               enum PlusMinus isign) const = 0;
 
    virtual LatticeComplex operator()(const T& quark1, 
                                      const T& quark2, 
                                      const T& quark3) const = 0;
 
    virtual multi1d<LatticeComplex> operator()(const T& quark1, 
                                               const T& quark2, 
                                               const T& quark3,
                                                                 int* qindices,
                                               enum PlusMinus isign) const = 0;
 
    virtual LatticeComplex operator()(const T& quark1, 
                                               const T& quark2, 
                                               const T& quark3,
                                               int* qindices) const = 0;
 
  };
 
}
 
 
#endif