Increase coverage of Qiskit Nature by tutorials

[woodsp-ibm]

There are aspects of Qiskit Nature that are not covered by the present set of tutorials. It would be good to expand the coverage of the function. Here are areas that come to mind

• The new operators and how to use them
• AdaptVQE tutorial
• One on UCC ansatz showing examples of how to set up/use
• Transformers such as active space and freezecore
• Some on drivers (I had done some which were in community tutorials on using the driver, how to save/load for the HDF5 driver etc that can be re-purposed for here)
• Maybe something that shows/includes dipoles in some dissoc plot

[pbark]

I converted this issue to an epic, so that we can start populating with the different tutorials as separate issues for the planning of the upcoming release.

[mrossinek]

This issue has become rather stale and in the latest release of Qiskit Nature (0.5) I tried to address some of these shortcomings. The original list of suggestions now looks as follows:

• operators: are well documented in their class docstrings now
• AdaptVQE: has been migrated to Qiskit Terra and is now shown in a How-To
• UCC: has no direct tutorial but its class docstring has been improved significantly since opening this issue
• transformers: now have a tutorial
• drivers: not directly have a tutorial but also the HDF5 integration is deprecated and the QCSchema integration has a tutorial
• dipoles: imo not strictly necessary/useful

If we find the need for a specific topic to be covered by a tutorial, we should open an issue suggesting just that. Catch-all issues like this one are hard to keep track of and up-to-date. Thus, I am closing this issue.