g%FdZddlmZddlZddlmZddlmZ d d Zd d ZdS)zYRoutines that use local invariants to compute properties of two-qubit unitary operators. ) annotationsN)two_qubit_local_invariants)local_equivalenceU np.ndarrayreturnctj|t}|jdkrt dt |\}}}tjt|dt|dt|dgS)auComputes the local invariants for a two-qubit unitary. Args: U (ndarray): Input two-qubit unitary. Returns: ndarray: NumPy array of local invariants [g0, g1, g2]. Raises: ValueError: Input not a 2q unitary. Notes: Y. Makhlin, Quant. Info. Proc. 1, 243-252 (2002). Zhang et al., Phys Rev A. 67, 042313 (2003). dtype)r z,Unitary must correspond to a two-qubit gate. )npasarraycomplexshape ValueErrortqli_rsarrayround)rabcs a/granary/edev/quantum/lib/python3.11/site-packages/qiskit/synthesis/two_qubit/local_invariance.pyrrst 1G$$$Aw&GHHH IQ1 8U1b\\5B<<q"> ? ??weylctj|t}t|\}}}tjt |dt |dt |dgS)a|Computes the equivalent local invariants from the Weyl coordinates. Args: weyl (ndarray): Weyl coordinates. Returns: ndarray: Local equivalent coordinates [g0, g1, g3]. Notes: This uses Eq. 30 from Zhang et al, PRA 67, 042313 (2003), but we multiply weyl coordinates by 2 since we are working in the reduced chamber. r r )rrfloatle_rsrr)rmatrrrs rrr.sX *T ' ' 'Cc IQ1 8U1b\\5B<<q"> ? ??r)rrrr)rrrr) __doc__ __future__rnumpyr&qiskit._accelerate.two_qubit_decomposerrrrrrr%s#"""""XXXXXXMMMMMM@@@@.@@@@@@r