Shadow tomography Rivet transpile error on IONQ sim

[RomanNoven]

---

AttributeError Traceback (most recent call last)
Cell In[188], line 15
11 for rotation_circuit in rotation_tracker:
13 measurement_circuit = rotation_circuit.measure_all(inplace=False)
---> 15 shadow_circuit = transpile_right(
16 transpiled_central_circuit,
17 measurement_circuit,
18 backend=backend,
19 seed_transpiler=SEED,
20 optimization_level=OPTIMIZATION_LEVEL)
22 shadow_circuits.append(shadow_circuit)

File ~.ai-navigator\conda\envs\rivet\lib\site-packages\rivet_transpiler\transpiler.py:153, in transpile_right(central_circuit, right_circuit, backend, **key_arguments)
138 """
139 Transpile a right quantum circuit and combine it with already transpiled central circuit.
140
(...)
148 QuantumCircuit: The resulting quantum circuit.
149 """
151 # Transpile and Compose
--> 153 if backend is not None and backend.coupling_map is not None:
155 full_map = get_full_map(central_circuit)
157 key_arguments['initial_layout'] = full_map[:right_circuit.num_qubits]

AttributeError: 'IonQSimulatorBackend' object has no attribute 'coupling_map'

[ogorodnikov]

Hello @RomanNoven )

Thank you for the information!

Please note that according to the documentation - Qiskit backend should have a coupling_map attribute:

https://docs.quantum.ibm.com/api/qiskit/qiskit.providers.BackendV2#coupling_map

https://github.com/Qiskit/qiskit/blob/main/qiskit/providers/backend.py#L408

Perhaps you could set coupling_map to None?

backend.coupling_map = None

Best Regards,
Mykhailo