Paul Nation

It is a fair question to ask why is it a requirement in the first place?

Yeah I know the backstory, but disagree with that decision as I do not think that that functionality is used by many people at all. I personally have never had...

For the record, I do not think there is a completely automated way to determine what measurements an end-user considers as part of the final output distributions. Dynamic circuits make...

I would say absolutely, otherwise how is it a "primitive"? One can correct some mid-circuit measurements provided the results of those measurements are aggregated. Several of us would like this,...

While this is probably going to speed things up, it is likely not an ideal solution; you still have big matrices. Rather, it is easy to directly compute matrix elements...

It depends really. But agreed that it is more work than modifying the current operators.

So the basic idea follows Eq.4 from here: https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.2.040326 Namely given a `row` and `col` expressed as integers, you can convert them to their bit-string values and use those values...

Yeah, I forgot that the restriction to Paulis simplifies things a bit. It is easy to compute each row given the form of the Pauli operator. Expressing your row index...

This should wait for #8762 to be merged so that I can refactor on top of those changes.

The internals have quite a bit of intermediate numpy array creation and numerical operations. There is likely gains to be had by removing those. Not sure how big that is...