qrisp.interface.Backend.num_qubits

property Backend.num_qubits

Total number of physical qubits the backend exposes.

This reflects the full physical qubit count of the device, not a snapshot of currently healthy or calibrated qubits. A qubit whose calibration has degraded or whose gates have been removed from the active gate set should still be counted here.

Returns None if the backend does not expose a fixed or meaningful qubit count (e.g. simulators, abstract backends, or backends where this information is intentionally omitted).