I started to learn Qiskit, so sorry if my question is very basic. So far I used qasm_simulator or state_vectorsimulator, however, now I would like to run my circuit on real IBM Q processor.
Here is my code, I wanted to execute:
%matplotlib inline
# Importing standard Qiskit libraries and configuring account
from qiskit import QuantumCircuit, QuantumRegister, ClassicalRegister, execute, Aer, IBMQ
from qiskit.compiler import transpile, assemble
from qiskit.tools.jupyter import *
from qiskit.visualization import *
provider = IBMQ.load_account()
backend = provider.backends(name='ibmq_ourense')
q = QuantumRegister(5, name = 'q')
c = ClassicalRegister(2,name = 'c')
circuit = QuantumCircuit(q,c)
circuit.h(q[0])
circuit.cx(q[0],q[1])
circuit.measure(q[0],c[0])
circuit.measure(q[1],c[1])
job = execute(circuit, backend, shots = 1024)
counts = job.result().get_counts()
plot_histogram(counts)
However, this error was shown:
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-26-b48ae13f56aa> in <module>
11 circuit.measure(q[1],c[1])
12
---> 13 job = execute(circuit, backend, shots = 1024)
14 counts = job.result().get_couns()
15 plot_histogram(counts)
/opt/conda/lib/python3.7/site-packages/qiskit/execute.py in execute(experiments, backend, basis_gates, coupling_map, backend_properties, initial_layout, seed_transpiler, optimization_level, pass_manager, qobj_id, qobj_header, shots, memory, max_credits, seed_simulator, default_qubit_los, default_meas_los, schedule_los, meas_level, meas_return, memory_slots, memory_slot_size, rep_time, rep_delay, parameter_binds, schedule_circuit, inst_map, meas_map, scheduling_method, init_qubits, **run_config)
258 seed_transpiler=seed_transpiler,
259 optimization_level=optimization_level,
--> 260 backend=backend)
261
262 if schedule_circuit:
/opt/conda/lib/python3.7/site-packages/qiskit/compiler/transpile.py in transpile(circuits, backend, basis_gates, coupling_map, backend_properties, initial_layout, layout_method, routing_method, translation_method, seed_transpiler, optimization_level, pass_manager, callback, output_name)
211 callback, output_name)
212
--> 213 _check_circuits_coupling_map(circuits, transpile_args, backend)
214
215 # Transpile circuits in parallel
/opt/conda/lib/python3.7/site-packages/qiskit/compiler/transpile.py in _check_circuits_coupling_map(circuits, transpile_args, backend)
244
245 # If coupling_map is None, the limit might be in the backend (like in 1Q devices)
--> 246 elif backend is not None and not backend.configuration().simulator:
247 max_qubits = backend.configuration().n_qubits
248
AttributeError: 'list' object has no attribute 'configuration'
I think that the problem is hidden in getting backends or execute command.
Note: I run my code in Quantum Lab on IBM Q website interface.
Could any please help me how to change my code to run it on real IBM Q processor?
