Evolution_.h

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// Copyright András Vukics 2006–2014. Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.txt)
#ifndef CPPQEDCORE_QUANTUMTRAJECTORY_EVOLUTION__H_INCLUDED
#define CPPQEDCORE_QUANTUMTRAJECTORY_EVOLUTION__H_INCLUDED

#include "Evolution_Fwd.h"

#include "LazyDensityOperator.h"
#include "DensityOperatorFwd.h"
#include "StateVectorFwd.h"
#include "MCWF_TrajectoryFwd.h"
#include "ParsMCWF_Trajectory.h"
#include "QuantumSystemFwd.h"

#include "SmartPtr.h"
#include "TMP_Tools.h"

#include <iosfwd>



using namespace quantumtrajectory;


namespace evolution {

enum Method {
  SINGLE, 
  ENSEMBLE, 
  MASTER, 
  MASTER_FAST 
};

std::ostream& operator<<(std::ostream&, Method ); 
std::istream& operator>>(std::istream&, Method&); 



struct Pars : public trajectory::ParsRun, public mcwf::Pars {

  Method &evol; 
  bool
    &negativity, 
    &timeAverage; 
  double &relaxationTime; 

  Pars(parameters::ParameterTable& p, const std::string& mod="");

};



template<int RANK, typename SYS>
const boost::shared_ptr<MCWF_Trajectory<RANK> > makeMCWF(quantumdata::StateVector<RANK>&, const SYS&, const Pars&);

} // evolution



template<typename V, int RANK>
const typename quantumdata::LazyDensityOperator<RANK>::Ptr
evolve(quantumdata::StateVector<RANK>& psi, 
       typename structure::QuantumSystem<RANK>::Ptr sys, 
       const evolution::Pars& p 
       );


template<typename V, int RANK>
const typename quantumdata::LazyDensityOperator<RANK>::Ptr
evolve(quantumdata::DensityOperator<RANK>& rho, 
       typename structure::QuantumSystem<RANK>::Ptr sys, 
       const evolution::Pars& p 
       );



template<int... V, typename SV_OR_DO, typename SYS>
inline
const typename quantumdata::LazyDensityOperator<SV_OR_DO::N_RANK>::Ptr
evolve(SV_OR_DO& initial,
       const SYS& sys,
       const evolution::Pars& p)
{
  return evolve<tmptools::Vector<V...> >(initial,cpputils::sharedPointerize(sys),p);
}


#endif // CPPQEDCORE_QUANTUMTRAJECTORY_EVOLUTION__H_INCLUDED