qiskit.quantum_info.Operator.apply_permutation

Operator.apply_permutation(perm, front=False)

Modifies operator’s data by composing it with a permutation.

Parameters

• perm (list) – permutation pattern, describing which qubits occupy the positions 0, 1, 2, etc. after applying the permutation.

• front (bool) – When set to True the permutation is applied before the operator, when set to False the permutation is applied after the operator.

Returns

The modified operator.

Return type

Operator

Raises

QiskitError – if the size of the permutation pattern does not match the dimensions of the operator.