EvolvedOperatorAnsatz
class EvolvedOperatorAnsatz(operators=None, reps=1, evolution=None, insert_barriers=False, name='EvolvedOps', initial_state=None)
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
extension_lib
Default value: 'include "qelib1.inc";'
global_phase
Return the global phase of the circuit in radians.
header
Default value: 'OPENQASM 2.0;'
initial_state
The initial state.
Return type
QuantumCircuit
instances
Default value: 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
Default value: '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