pygsti.tools.unitary_to_pauligate_1q¶
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pygsti.tools.
unitary_to_pauligate_1q
(U)¶ Get the linear operator on (vectorized) density matrices corresponding to a 1-qubit unitary operator on states.
Parameters: U (numpy array) – A 2x2 array giving the action of the unitary on a state in the sigma-z basis. Returns: The operator on density matrices that have been vectorized as length-4 vectors in the Pauli basis. Array has shape == (4,4). Return type: numpy array