qiskit.quantum_info.random_unitary

random_unitary(dims, seed=None)

Return a random unitary Operator.

The operator is sampled from the unitary Haar measure.

Parameters

• dims (int or tuple) – the input dimensions of the Operator.
• seed (int or np.random.Generator) – Optional. Set a fixed seed or generator for RNG.

Returns

a unitary operator.

Return type

Operator