paulitodr.h

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