qiskit-bot
commented
2 days ago Thank you for opening a new pull request.
Before your PR can be merged it will first need to pass continuous integration tests and be reviewed. Sometimes the review process can be slow, so please be patient.
While you're waiting, please feel free to review other open PRs. While only a subset of people are authorized to approve pull requests for merging, everyone is encouraged to review open pull requests. Doing reviews helps reduce the burden on the core team and helps make the project's code better for everyone.
One or more of the following people are relevant to this code:
@Qiskit/terra-core@ajavadia@levbishop@t-imamichi
coveralls
Summary
Add method
BitArray.postselect(), per issue #12688 .Details and comments
Added a test that does postselection on a random circuit (fixed seed in the test) with this structure:
Three registers, each register has >8 qubits, so it should be a pretty messy application of postselection. Each QuantumChannel is a 50/50 bitflip. We randomly pick a few of the pairs of measurements, postselect on the first cbit of each pair being randomly 0 or 1, then check that the expectation value of Z...Z on all the second cbits of each pair matches the expectation (repeating this sentence a bunch of times).