/data/Documents/eclipse/workspace/ColorFull/Tree_level_gluon_basis.h

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// -*- C++ -*-
/*
 *  Trace_basis.h
 *      Contains the declarations of the class Tree_level_gluon_basis, related types and operators
 *  Created on: Aug 9, 2012
 *  Author: Malin Sjodahl
 */

#ifndef COLORFULL_Tree_level_gluon_basis_h
#define COLORFULL_Tree_level_gluon_basis_h

#include "Trace_type_basis.h"

namespace ColorFull {


class Tree_level_gluon_basis:public Trace_type_basis {
public:

        Tree_level_gluon_basis():Trace_type_basis(){
                initialize();
        }

        Tree_level_gluon_basis( int n_g ):Trace_type_basis(){
                initialize();
                create_basis( n_g );
        }

        /******************** Basis creation **********************/
        // Special functions are needed as half the color structure is implicit

        void create_basis( int n_g );

        /******************** Basis reading and writing **********************/

        void read_in_Col_basis( std::string filename );

        void read_in_Col_basis( );

        void write_out_Col_basis( ) const;

        void write_out_Col_basis( std::string filename ) const;


protected:

        virtual std::ostream&  write_out_Col_basis_to_stream( std::ostream&  out ) const;


private:

        void initialize(){
                tree_level_gluon_basis = true;
                max_ql=1;
        }

        Polynomial ij_entry( const int i, const int j ) const;

        /******************** Basis creation **********************/

        Col_amp create_trace_basis( int n_g ) const;

        Col_amp add_one_gluon( const Col_str & Cs, int g_new ) const;

        Col_amp add_one_gluon( const Col_amp & Old_basis, int g_new ) const;

};

} /* namespace ColorFull */
#endif /* COLORFULL_Tree_level_gluon_basis_h */