VarQTEResult#

class VarQTEResult(evolved_state, aux_ops_evaluated=None, observables=None, times=None, parameter_values=None)[source]#

Bases: TimeEvolutionResult

The result object for the variational quantum time evolution algorithms.

parameter_values#

Optional list of parameter values obtained after each evolution step.

Type:

np.array | None

Parameters:

  • evolved_state (QuantumCircuit) – An evolved quantum state.

  • aux_ops_evaluated (ListOrDict[tuple[complex, complex]] | None) – Optional list of observables for which expected values on an evolved state are calculated. These values are in fact tuples formatted as (mean, standard deviation).

  • observables (ListOrDict[tuple[np.ndarray, np.ndarray]] | None) – Optional list of observables for which expected on an evolved state are calculated at each timestep. These values are in fact lists of tuples formatted as (mean, standard deviation).

  • times (np.ndarray | None) – Optional list of times at which each observable has been evaluated.

  • parameter_values (np.ndarray | None) – Optional list of parameter values obtained after each evolution step.

Methods

combine(result)#

Any property from the argument that exists in the receiver is updated. :param result: Argument result with properties to be set.

Raises:

TypeError – Argument is None