docs(notebooks): add LO guide

IBM-Quantum-Technical-Enablement / quantum-enablement

IBM Quantum Engineering and Enabling Technologies

Apache License 2.0

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docs(notebooks): add LO guide #21

Closed ritajitmajumdar1 closed 2 months ago

ritajitmajumdar1 commented 4 months ago

Summary

This notebook shows an MVP for using gate cutting to improve the hardware connectivity.

Details and comments

This notebook uses a periodic MBL circuit for demonstration.
The results from this notebook does not use any error mitigation techniques.

coveralls commented 4 months ago

Pull Request Test Coverage Report for Build 8865421534

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

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Details

0 of 0 changed or added relevant lines in 0 files are covered.
No unchanged relevant lines lost coverage.
Overall coverage remained the same at 100.0%

Totals
Change from base Build 8708380490:	0.0%
Covered Lines:	290
Relevant Lines:	290

💛 - Coveralls

ritajitmajumdar1 commented 3 months ago

This notebook currently uses Primitives V1. This is because as per my last discussion with Jim Garrison, circuit-knitting-toolbox can support Primitives V2, but it should be separately installed from source for now. Support for Primitives V2 is not yet available for pip installation. So, I am sticking to Primitives V1 till the time support for V2 is available in pip installation.

ritajitmajumdar1 commented 2 months ago

Addressed the comments by @pedrorrivero. For this example, running in Batch is not necessary. So I have removed it to avoid unnecessary complications. We may include it when we scale this up to more depth.

I have not used transpilation to find initial layout. I have mentioned in the notes that it is possible to find the layout via transpilation, but here we do it manually. The reason beings, we have already performed one transpilation with virtual coupling map. Finding good initial layout automatically will require creating a virtual circuit without the long range entanglement, and then again add those entanglements. The first one (virtual coupling map) is absolutely necessary. I am of the opinion to not add the 2nd one to avoid complications. I feel anyone going through the notebook may get lost in these, and miss the primary message.