Support new primitive based algorithms.

[woodsp-ibm]

What is the expected enhancement?

Support primitive based algorithms such as the new QAOA and SamplingVQE etc accordingly.

Update GroverOptimizer to move away from QuantumInstance use, potentially by more directly using Grover from Terra.

Update tutorials correspondingly

Update readme sample

Migration guide as applicable

• MinimumEigenOptimizer (@t-imamichi) Update optimizers to allow new primitives-based algorithms #436
• GroverOptimizer (@a-matsuo) GroverOptimizer with Sampler #437
• documentation Update optimizers to allow new primitives-based algorithms #436
• migration guide / tutorials Update tutorials and add migration guide #448

[t-imamichi]

Tutorials and migration guide have just been merged #448. So, I think we can close this issue.

[woodsp-ibm]

So, I think we can close this issue.

Yes. I think so.

Maybe though, if you note above I mentioned for the GroverOptimzer the direct use of Grover algorithm from Terra. When the GroverOptimzer was originally done the Grover at that time was not as flexible. But now its likely that the Grover algorithm can be used here rather than the custom logic/circuits here. There was no time to look into this though for the current release but it may be worth raising a separate issue to cover this so it can be looked at later.

[t-imamichi]

Thank you for reminding me of GroverOptimizer. Is this https://github.com/Qiskit/qiskit-optimization/pull/437/files#r1024573314 the discussion?

[woodsp-ibm]

That certainly was the most recent discussion, yes. The idea has been floating around for a while though.

[t-imamichi]

I made #456 for the discussion