diractodr.h

Go to the documentation of this file.

// -*- C++ -*-
/*! \file
 *  \brief Basis rotation matrix from Dirac to Degrand-Rossi (and reverse)
 */
 
#ifndef __diractodr_h__
#define __diractodr_h__
 
namespace Chroma {
 
//! The Dirac to Degrand-Rossi spin transformation matrix
/*!
 * \ingroup ferm
 *
 * Return the similarity transformation matrix from 
 * Euclidean Dirac to Euclidean Degrand-Rossi basis
 *
 * \returns The U in   Gamma_{Degrand-Rossi} = U Gamma_Dirac U^dag
 */
 
SpinMatrixD DiracToDRMat();
 
}  // end namespace Chroma
 
#endif