qiskit.circuit.QuantumCircuit.cswap

QuantumCircuit.cswap(control_qubit, target_qubit1, target_qubit2, label=None, ctrl_state=None)

Apply CSwapGate.

For the full matrix form of this gate, see the underlying gate documentation.

Parameters

• control_qubit (Union[Qubit, QuantumRegister, int, slice, Sequence[Union[Qubit, int]]]) -- The qubit(s) used as the control.

• target_qubit1 (Union[Qubit, QuantumRegister, int, slice, Sequence[Union[Qubit, int]]]) -- The qubit(s) targeted by the gate.

• target_qubit2 (Union[Qubit, QuantumRegister, int, slice, Sequence[Union[Qubit, int]]]) -- The qubit(s) targeted by the gate.

• label (Optional[str]) -- The string label of the gate in the circuit.

• ctrl_state (Union[str, int, None]) -- The control state in decimal, or as a bitstring (e.g. '1'). Defaults to controlling on the '1' state.

Return type

InstructionSet

Returns

A handle to the instructions created.