/**********************************************************

This software is part of J.-S. Caux's ABACUS library.

Copyright (c).

-----------------------------------------------------------

File:  JSC_State_Ensemble.h

Purpose:  Define state ensembles.


***********************************************************/

#ifndef _ENS_
#define _ENS_

#include "JSC.h"

namespace JSC {


  struct LiebLin_Diagonal_State_Ensemble {

    int nstates;
    Vect<LiebLin_Bethe_State> state;
    Vect<DP> weight;

    LiebLin_Diagonal_State_Ensemble ();
    LiebLin_Diagonal_State_Ensemble (const LiebLin_Bethe_State& RefState, int nstates_req);
    //LiebLin_Diagonal_State_Ensemble (const LiebLin_Bethe_State& RefState, int nstates_req, const Vect<DP>& weight_ref);
    //LiebLin_Diagonal_State_Ensemble (DP c_int, DP L, int N, const Root_Density& rho, int nstates_req);
    LiebLin_Diagonal_State_Ensemble (DP c_int, DP L, int N, const Root_Density& rho);

    LiebLin_Diagonal_State_Ensemble& operator= (const LiebLin_Diagonal_State_Ensemble& rhs);
    void Load (DP c_int, DP L, int N, const char* ensfile_Cstr);
    void Save (const char* ensfile_Cstr);
  };

  //LiebLin_Diagonal_State_Ensemble LiebLin_Thermal_Saddle_Point_Ensemble (DP c_int, DP L, int N, DP kBT, int nstates_req);
  LiebLin_Diagonal_State_Ensemble LiebLin_Thermal_Saddle_Point_Ensemble (DP c_int, DP L, int N, DP kBT);


} // namespace JSC

#endif