I created the following code to run a simple circuit through a quantum device twice. My purpose was to show the effects of noise with different arrangements of qubits when using ibmq_belem.
#Run circuit with two different qubit layouts from qiskit import IBMQ, execute #Load account provider=IBMQ.load_account() #Choose device backend=provider.get_backend('ibmq_belem') C= for initial_layout in [[0,3],[2,4]]: job=execute(circuit, backend, initial_layout=initial_layout).result() c=result.get_counts() C.append(c)
These are clearly not the identically perfect versions that my C set seems to have created. This makes my question; What have I done wrong in coding this that C is not accurately reflecting my counts?
Edit: I note that it has somehow decided to take the counts from when I ran this circuit on a simulator in a prior cell using the following code.
simulator=Aer.get_backend('aer_simulator') result=execute(circuit,backend=simulator).result() plot_histogram(result.get_counts(circuit))
This code had been run before I ever created the set C, so I did not expect it to interfere, but now I'm not sure how to work around this.