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1

The user has to create the error mitigation calibration matrix for their experiments. You could always just create the matrix for the subset of qubits you are experimenting on if you are sending your experiment to a larger device.

1

Thanks for help, it works. Here is a changed circuit and results on IBM Q (Vigo processor). Just note that q-bit $0.5|0\rangle + \sqrt {0.75}|1\rangle$ is teleported from q-bit q0 to q2. Angle in Ry gate is $2\pi/3$. ,

5

The issue is that you are applying operations after measurement gates and this is currently not available on the real hardware. I think the hardware also does not support reset operations mid-way through a circuit at the moment. The best way forward is to keep running this on the simulator or try to find a different way of expressing the circuit such that ...

2

Every time you run a code on one of IBM's Q.computers, you'll need to validate your access token which you can find in your IBM Q experience dashboard under the user category. In case, you've done it beforehand but still doesn't seem to work, make sure to delete all your previous account details using IBMQ.delete_accounts() Then try regenerating a new ...

1

It sounds like maybe one of the calls is missed. To get results you need to run backend = Aer.get_backend('qasm_simulator') job = execute(circ, backend) result = job.result() plot_histogram(result.get_counts(circuit))

2

This was an error but it should now be fixed. If this happens again in future, the work around is to remove that line and use IBMQ.enable_account(my_token) instead.

5

Qiskit implements a transpiler which optimizes the circuits that you provide. This means it modifies the circuit so that it can be run on the backend and also optimizes it so that anything that can possibly be run in parallel is done so. To run with the maximum level of optimization you can run execute(circuit, optimization_level=3). There is more ...

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