EvolvedOperatorAnsatz¶

class EvolvedOperatorAnsatz(operators=None, reps=1, evolution=None, insert_barriers=False, name='EvolvedOps', initial_state=None)[source]¶

Bases: qiskit.circuit.library.blueprintcircuit.BlueprintCircuit

The evolved operator ansatz.

Parameters

operators (Optional[Union[OperatorBase, QuantumCircuit, list]) – The operators to evolve. If a circuit is passed, we assume it implements an already evolved operator and thus the circuit is not evolved again. Can be a single operator (circuit) or a list of operators (and circuits).
reps (int) – The number of times to repeat the evolved operators.
evolution (Optional[EvolutionBase]) – An opflow converter object to construct the evolution. Defaults to Trotterization.
insert_barriers (bool) – Whether to insert barriers in between each evolution.
name (str) – The name of the circuit.
initial_state (Optional[QuantumCircuit]) – A QuantumCircuit object to prepend to the circuit.

Attributes

ancillas¶: Returns a list of ancilla bits in the order that the registers were added.

calibrations¶

Return calibration dictionary.

The custom pulse definition of a given gate is of the form: {‘gate_name’: {(qubits, params): schedule}}

clbits¶: Returns a list of classical bits in the order that the registers were added.

data¶

evolution¶

The evolution converter used to compute the evolution.

Returns: The evolution converter used to compute the evolution.
Return type: EvolutionBase

extension_lib = 'include "qelib1.inc";'¶

global_phase¶: Return the global phase of the circuit in radians.

header = 'OPENQASM 2.0;'¶

initial_state¶

The initial state.

Return type: QuantumCircuit

instances = 16¶

metadata¶

The user provided metadata associated with the circuit

The metadata for the circuit is a user provided dict of metadata for the circuit. It will not be used to influence the execution or operation of the circuit, but it is expected to be passed between all transforms of the circuit (ie transpilation) and that providers will associate any circuit metadata with the results it returns from execution of that circuit.

num_ancillas¶: Return the number of ancilla qubits.

num_clbits¶: Return number of classical bits.

num_parameters¶

Return type: int

num_qubits¶: Return number of qubits.

operators¶

The operators that are evolved in this circuit.

Returns: The operators to be evolved (and circuits) contained in this ansatz.
Return type: list

parameters¶

Return type: ParameterView

preferred_init_points¶: Getter of preferred initial points based on the given initial state.

prefix = 'circuit'¶

qregs¶: A list of the quantum registers associated with the circuit.

qubits¶: Returns a list of quantum bits in the order that the registers were added.

reps¶

The number of times the evolved operators are repeated.

Return type: int