mixed_unitary_error

mixed_unitary_error(noise_ops)

Return a mixed unitary quantum error channel.

The input should be a list of pairs (U[j], p[j]), where U[j] is a unitary matrix and p[j] is a probability. All probabilities must sum to 1 for the input ops to be valid.

Parameters:

noise_ops (list[pair[matrix, double]]) – unitary error matrices.

Returns:

The quantum error object.

Return type:

QuantumError

Raises:

NoiseError – if error parameters are invalid.