VQEResult

class qiskit.algorithms.minimum_eigensolvers.VQEResult

Bases: VariationalResult, MinimumEigensolverResult

Variational quantum eigensolver result.

Attributes

aux_operators_evaluated

The aux operator expectation values.

These values are in fact tuples formatted as (mean, (variance, shots)).

cost_function_evals

The number of cost optimizer evaluations.

eigenvalue

The computed minimum eigenvalue.

optimal_circuit

The optimal circuits. Along with the optimal parameters, these can be used to retrieve the minimum eigenstate.

optimal_parameters

Returns the optimal parameters in a dictionary

optimal_point

Returns optimal point

optimal_value

Returns optimal value

optimizer_evals

Returns number of optimizer evaluations

optimizer_result

Returns the optimizer result

optimizer_time

Returns time taken for optimization

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