Module device 

PennyLane device backend for QuantRS2.

This module implements a JSON-protocol device that allows PennyLane to execute quantum circuits on QuantRS2’s state-vector simulator.

Protocol

PennyLane sends a JSON payload to the device:

{
  "num_wires": 2,
  "operations": [
    {"name": "Hadamard", "wires": [0], "params": []},
    {"name": "CNOT",     "wires": [0, 1], "params": []}
  ],
  "observables": [
    {"name": "PauliZ", "wires": [0]}
  ]
}

The device responds with:

{
  "state": {"re": [...], "im": [...]},
  "probabilities": [...],
  "expval": [0.0]
}

Structs

PennyLaneCircuit

The circuit payload sent from PennyLane to the device.

PennyLaneObservable

An observable for expectation-value computation.

PennyLaneOperation

A single gate operation in PennyLane’s JSON protocol.

PennyLaneResult

The result returned from the device to PennyLane.

QuantRS2Device

The QuantRS2 PennyLane device backend.

Enums

DeviceError

Errors that can occur in the PennyLane device backend.