paraqeet.propagation.vern7.Vern7

class paraqeet.propagation.vern7.Vern7(model, resolution)

Bases: Propagation

Propagate state by solving the Schrödinger equation / Lindblad master equation by using ODE solver.

Implements Vern7 ODE Solver algorithm non adaptive (fixed time-step) version.

Parameters:

• model (EquationOfMotion)

• resolution (float)

__init__(model, resolution)

Parameters:

• model (Model) – Model

• res (float) – Resolution at which to sample the EOM

• resolution (float)

Methods

__init__(model, resolution)
get_parameters()	Per default, propagation methods have no parameters to optimize.
propagate(time)	Return the solution of the equation of motion for open/closed system using vern7 ODE solver.
set_initial_state(state)	Set initial state.

Attributes

is_open	Return if the propagation is for open or closed system.
resolution	Return the propagation resolution.

get_parameters()

Per default, propagation methods have no parameters to optimize.

property is_open: bool

Return if the propagation is for open or closed system.

propagate(time)

Return the solution of the equation of motion for open/closed system using vern7 ODE solver.

Loop over all desired times in time at set resolution.

Parameters:

time (Array) – Any one-dimensional vector of timestamps.

Returns:

Returns the solution of the equations of motion.

Return type:

Array

Raises:

ConfigurationException – If the initial state is not set.

property resolution: float

Return the propagation resolution.

set_initial_state(state)

Set initial state.