rot_colvec.h

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// -*- C++ -*-
/*! \file
 *  \brief Rotate a color std::vector
 */
 
#ifndef __rot_colvec_h__
#define __rot_colvec_h__
 
namespace Chroma {
 
//! Rotate a color std::vector
/*!
 * \ingroup gfix
 *
 * Rotate a color std::vector into the form where the component with index
 * s_index is real and the component with larger index are zero.
 * We do this by a series of SU(2) gauge rotations.
 *
 * \param g          Gauge transformation                              (Write)
 * \param psi        Input color std::vector field                          (Read)
 * \param chi        Output color std::vector field                         (Write)
 * \param s_index    color index                                       (Read)
 */
 
void rot_colvec(LatticeColorMatrix& g, 
                const LatticeColorVector& psi,
                LatticeColorVector& chi,
                int s_index);
 
}  // end namespace Chroma
 
#endif