Declan Millar

### What should we add? The MP2InitialPoint computation, which was introduced in PR #590, seems to only support use cases where the alpha and beta spin MOs are identical. I.e.,...

### What is the expected enhancement? Depends on PRs #590 and #632. Validate the use of MP2 coefficients as an initial point for VQE using the UCC+HF ansatz that is...

VQE implementation with estimator primitive

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### Summary Adds a standard `VQE` implementation using an `Estimator` primitive. Closes #8471. A `SamplingVQE` implementation that takes a `Sampler` primitive is introduced in PR #8669. ### Details and comments...