XOR¶

class
XOR
(num_qubits, amount=None, seed=None)[source]¶ Bases:
qiskit.circuit.quantumcircuit.QuantumCircuit
An n_qubit circuit for bitwise xoring the input with some integer
amount
.The
amount
is xored in bitstring form with the input.This circuit can also represent addition by
amount
over the finite field GF(2).Return a circuit implementing bitwise xor.
 Parameters
num_qubits (
int
) – the width of circuit.amount (
Optional
[int
]) – the xor amount in decimal form.seed (
Optional
[int
]) – random seed in case a random xor is requested.
 Raises
CircuitError – if the xor bitstring exceeds available qubits.
 Reference 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
¶ Return the circuit data (instructions and context).
 Returns
a listlike object containing the tuples for the circuit’s data.
Each tuple is in the format
(instruction, qargs, cargs)
, where instruction is an Instruction (or subclass) object, qargs is a list of Qubit objects, and cargs is a list of Clbit objects. Return type
QuantumCircuitData

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

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

header
= 'OPENQASM 2.0;'¶

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
¶ Convenience function to get the number of parameter objects in the circuit.

num_qubits
¶ Return number of qubits.

parameters
¶ Convenience function to get the parameters defined in the parameter table.

prefix
= 'circuit'¶

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