class cirq.CSwapGate[source]

A controlled swap gate. The Fredkin gate.


Initialize self. See help(type(self)) for accurate signature.


num_qubits() The number of qubits this gate acts on.
on(*qubits) Returns an application of this gate to the given qubits.
qubit_index_to_equivalence_group_key(index) Returns a key that differs between non-interchangeable qubits.
validate_args(qubits) Checks if this gate can be applied to the given qubits.