Evolution_.h File Reference

Highest level driver functions for quantum trajectories. More...

#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>

Include dependency graph for Evolution_.h:

Go to the source code of this file.

Classes
struct	evolution::Pars
	Aggregate of parameters pertaining to the highest level driver functions for quantum trajectories. More...

Namespaces
	evolution
	Auxiliary tools for the evolve functions.

Enumerations
enum	evolution::Method { evolution::SINGLE, evolution::ENSEMBLE, evolution::MASTER, evolution::MASTER_FAST }
	Method of evolution for a quantum system. More...

Functions
std::ostream &	evolution::operator<< (std::ostream &, Method)
	output streaming for Method
std::istream &	evolution::operator>> (std::istream &, Method &)
	input streaming for Method
template<int RANK, typename SYS >
const boost::shared_ptr< MCWF_Trajectory< RANK > >	evolution::makeMCWF (quantumdata::StateVector< RANK > &, const SYS &, const Pars &)
	Dispatcher returning a quantumtrajectory::MCWF_Trajectory or quantumtrajectory::TimeAveragingMCWF_Trajectory instant, depending on the last argument (cf. Pars::timeAverage) More...
template<typename V , int RANK>
const quantumdata::LazyDensityOperator< RANK >::Ptr	evolve (quantumdata::StateVector< RANK > &psi, typename structure::QuantumSystem< RANK >::Ptr sys, const evolution::Pars &p)
	The prototype function to evolve a quantumtrajectory from a pure StateVector initial condition. More...
template<typename V , int RANK>
const quantumdata::LazyDensityOperator< RANK >::Ptr	evolve (quantumdata::DensityOperator< RANK > &rho, typename structure::QuantumSystem< RANK >::Ptr sys, const evolution::Pars &p)
	The prototype function to evolve a Master trajectory from a DensityOperator initial condition. More...
template<int... V, typename SV_OR_DO , typename SYS >
const quantumdata::LazyDensityOperator< SV_OR_DO::N_RANK >::Ptr	evolve (SV_OR_DO &initial, const SYS &sys, const evolution::Pars &p)

Detailed Description

Highest level driver functions for quantum trajectories.

Definition in file Evolution_.h.

Function Documentation

template<typename V , int RANK>

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

The prototype function to evolve a quantumtrajectory from a pure StateVector initial condition.

Basically a dispatcher invoking trajectory::run, with the difference that it also creates and stores the necessary quantum trajectory

Template Parameters

V	has the same function as the template parameter V in quantumdata::negPT (cannot be inferred)
RANK	arity of the Hilbert space (inferred from the 1st function argument)

Returns

the final state of the evolution as a quantumdata::LazyDensityOperator (for evolution::SINGLE this will be a copy of the evolved state vector, while for evolution::MASTER and evolution::ENSEMBLE a density operator)

Parameters

[in,out]	psi	pure state-vector initial condition
[in]	sys	the simulated quantum system
[in]	p	parameters of the evolution

template<typename V , int RANK>

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

The prototype function to evolve a Master trajectory from a DensityOperator initial condition.

Parameters

[in,out]	rho	density operator initial condition
[in]	sys	the simulated quantum system
[in]	p	parameters of the evolution

template<int... V, typename SV_OR_DO , typename SYS >

const quantumdata::LazyDensityOperator<SV_OR_DO::N_RANK>::Ptr evolve ( SV_OR_DO &  initial, const SYS &  sys, const evolution::Pars &  p  )

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Adds also the syntactic sugar of being able to write

evolve<2,0,4>(psi,sys,p)

instead of

evolve<tmptools::Vector<2,0,4> >(psi,sys,p)

Definition at line 109 of file Evolution_.h.