fuzglue.h

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// -*- C++ -*-
/*! \file
 *  \brief Compute 'fuzzy' (blocked) glueball correlation functions
 */
 
#ifndef __fuzglue_h__
#define __fuzglue_h__
 
namespace Chroma 
{
 
  //! Compute 'fuzzy' (blocked) glueball correlation functions
  /*! 
   * \ingroup glue
   *
   * Driver for computation of 'fuzzy' (blocked) glueball correlation functions
   * using Tepers 'fuzzying' method.
   *
   * Warning: this works only for Nd = 4 ! (Construction of glueball states)
   * Warning: this works only for Nc = 2 and 3 ! (Projection of blocked links)
   *
   * \param xml_out    xml file object ( Write )
   * \param xml_group  std::string used for writing xml data ( Read )
   * \param u          gauge field ( Read )
   * \param j_decay    direction along which the exponentrial is allowed to decay ( Read )
   * \param BlkAccu    accuracy in fuzzy link projection ( Read )
   * \param BlkMax     maximum number of iterations in fuzzy link projection ( Read ) 
   */
 
  void fuzglue(XMLWriter& xml_out, const std::string& xml_group,
               const multi1d<LatticeColorMatrix>& u, 
               int j_decay, const Real& BlkAccu, int BlkMax);
 
}  // end namespace Chroma
 
#endif