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Is there a way to represent measurements in other bases in Qiskit? The default measurement is in the Z (computational) basis. Can I also depict measurement in X, Y and general Pauli Measurements?

I know that I can apply a suitable unitary and then measure in the Z basis, but I am looking for a way to add the measurements to the circuit almost like "gates". I will be putting many such measurements in sequence in my circuits. I will be happy to use any external/in-development tool that allows this and interfaces well with Qiskit.

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    $\begingroup$ In progress: github.com/Qiskit/qiskit-terra/pull/5311 $\endgroup$ Commented Mar 7, 2021 at 7:01
  • $\begingroup$ Hi, Thanks for your quick answer. Do you think that is ready to use for what I have said I want to do? $\endgroup$
    – shashvat
    Commented Mar 7, 2021 at 8:32
  • $\begingroup$ Probably, but I don't think it will be easy for you to apply it without a proper release of Qiskit that includes it. $\endgroup$ Commented Mar 7, 2021 at 12:06
  • $\begingroup$ Have you looked into using Pennylane? They allow you to measure in arbitrary basis as you mentioned.... look here: pennylane.readthedocs.io/en/stable/introduction/… and there is a plugin between Pennylane and Qiskit pennylane-qiskit.readthedocs.io/en/latest which allows you to execute your work on IBM hardware. $\endgroup$
    – KAJ226
    Commented Mar 7, 2021 at 17:30
  • $\begingroup$ @KAJ226 Thanks for sharing! Unfortunately it looks like while Pennylane does allow the general Pauli measurements I want, it still does not allow multiple measurements per circuit. $\endgroup$
    – shashvat
    Commented Mar 8, 2021 at 3:18

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