def _two_qubit_matrix_to_cz_operations(
self,
q0: 'cirq.Qid',
q1: 'cirq.Qid',
mat: np.ndarray,
) -> Sequence['cirq.Operation']:
"""Decomposes the merged two-qubit gate unitary into the minimum number
of SQRT_ISWAP gates.
Args:
q0: The first qubit being operated on.
q1: The other qubit being operated on.
mat: Defines the operation to apply to the pair of qubits.
Returns:
A list of operations implementing the matrix.
"""
return two_qubit_to_sqrt_iswap.two_qubit_matrix_to_sqrt_iswap_operations(
q0,
q1,
mat,
required_sqrt_iswap_count=self.required_sqrt_iswap_count,
use_sqrt_iswap_inv=self.use_sqrt_iswap_inv,
atol=self.tolerance,
check_preconditions=False,
)
def _decompose_two_qubit_operation(self, op: 'cirq.Operation', _) -> DecomposeResult:
if protocols.has_unitary(op):
return two_qubit_to_sqrt_iswap.two_qubit_matrix_to_sqrt_iswap_operations(
op.qubits[0],
op.qubits[1],
protocols.unitary(op),
required_sqrt_iswap_count=self.required_sqrt_iswap_count,
use_sqrt_iswap_inv=self.use_sqrt_iswap_inv,
atol=self.atol,
check_preconditions=False,
clean_operations=True,
)
if protocols.is_parameterized(op):
return two_qubit_to_sqrt_iswap.parameterized_2q_op_to_sqrt_iswap_operations(
op, use_sqrt_iswap_inv=self.use_sqrt_iswap_inv
)
return NotImplemented