# cirq.measure¶

cirq.measure(*target: cirq.Qid, key: Optional[str] = None, invert_mask: Tuple[bool, ...] = ()) → cirq.ops.raw_types.Operation[source]

Returns a single MeasurementGate applied to all the given qubits.

The qubits are measured in the computational basis.

Parameters
• *target – The qubits that the measurement gate should measure.

• key – The string key of the measurement. If this is None, it defaults to a comma-separated list of the target qubits’ str values.

• invert_mask – A list of Truthy or Falsey values indicating whether the corresponding qubits should be flipped. None indicates no inverting should be done.

Returns

An operation targeting the given qubits with a measurement.

Raises

ValueError if the qubits are not instances of Qid.