CircuitOp.num_qubits

property CircuitOp.num_qubits: int

The number of qubits over which the Operator is defined. If op.num_qubits == 5, then op.eval('1' * 5) will be valid, but op.eval('11') will not.

Return type

int

Returns

The number of qubits accepted by the Operator’s underlying function.