2
$\begingroup$

I'm new to IBM, so I'm still figuring things out. I want to make a POVM measurement of a quantum state for state discrimination purposes. In other words I want a measurement that has three outcomes:

A: It's state A with 100 % certainty (or x %) B: It's state B with 100 % certainty (or x %) C: Can't determine if it's state A or B.

Can anyone help with how to do this in IBM's Quantum Composer?

$\endgroup$
1
  • 1
    $\begingroup$ The general idea is that you have to dilate your POVM into a projective measurement, as described in the Wikipedia article. An specific implementation for a quantum computer using qubits is described in this exercise sheet. $\endgroup$ – Mateus Araújo Mar 8 at 13:02

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.