PennyLane Plugin

[ymd-h]

1. apply()

https://docs.pennylane.ai/en/stable/code/api/pennylane.QubitDevice.html#pennylane.QubitDevice.apply

1.1 Return / Side Effect

In DefaultQubit (base class of many devices), apply() returns nothing and stores something (undocumented but probably 2^n qubits state vector) at self._state.
https://github.com/PennyLaneAI/pennylane/blob/dcbe39242b5fc423656484c69d2d639d0acd5c99/pennylane/devices/default_qubit.py#L245

1.2 Rotation

2. Measurement / Observable

3. Capability