QEC: Extend qtcodes

[amirebrahimi]

Description

The purpose of this project is to take the great work done on qtcodes and extend it to:

• Add support for rectangular geometry
• Build topological circuits using qubits of varying code types and sizes
• Allow for specifying the overall topology of many logical qubits

As a stretch goal, we'd like to:

• Demonstrate magic state distillation
• Implement support for twist-based lattice surgery

Mentor/s

James Wootton

Participants

Amir Ebrahimi
Jeffrey Gong
Shantanu Jha

Deliverable

Improvements to the qtcodes project.

[HuangJunye]

@Phionx would you like to work with @amirebrahimi under the mentorship project to extend your qtcodes project? @quantumjim Would you like to be a mentor if this is an extension of qtcodes?

[quantumjim]

Could do, yep. One thing I’ve been wanting to do myself is basically redo this paper https://arxiv.org/abs/1808.03927 But with qtcodes. So that’s one possible idea.

…

On Mon 23. Aug 2021 at 18:06, Junye Huang ***@***.***> wrote: @Phionx <https://github.com/Phionx> would you like to work with @amirebrahimi <https://github.com/amirebrahimi> under the mentorship project to extend your qtcodes project <https://github.com/yaleqc/qtcodes>? @quantumjim <https://github.com/quantumjim> Would you like to be a mentor if this is an extension of qtcodes? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#30 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AEJXD5TP2IDH7JE3YP72TZ3T6JWW3ANCNFSM5CREWZWA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&utm_campaign=notification-email> .

[Phionx]

Sure! The more collaborators on qtcodes the better :)
Feel free to explore https://github.com/yaleqc/qtcodes/issues for potential ideas or open issues with new ideas!

[shil-m]

My last project was based on designing a surface code for an asymmetric error channel that could correct 2 Z errors and single X errors. I would love to work on this project if it is on similar lines. @amirebrahimi
I am still exploring qtcodes, but I would love to contribute if you ever wish to implement https://arxiv.org/abs/1808.03927 @quantumjim

[HuangJunye]

@Phionx @amirebrahimi Can you please upload your presentation here by the end of today? Thank you!

[amirebrahimi]

@HuangJunye - Here's an updated version
#30 QEC Extend qtcodes.pdf

[amirebrahimi]

Checkpoint 2:
We have completed extending the library to have rectangular surface code encoding/decoding with yaleqc/qtcodes#58
We have a PR in-flight (yaleqc/qtcodes#53) for allowing different logical qubit types to be used in a circuit together.

Additionally, we removed a previous dependency on pydot for qtcodes and now use matplotlib drawing via retworkx (yaleqc/qtcodes#57)

[amirebrahimi]

for 12/9:
#30 QEC_ Extend qtcodes (Final Report).pdf

[amirebrahimi]

Here's the "final final":
#30 QEC_ Extend qtcodes (Final Report).pdf

[HuangJunye]

@amirebrahimi Can you please link the PRs you have done during QAMP here? A quick search showed 6 PRs on the qtcodes repo, but it would be good to have your confirmation: https://github.com/yaleqc/qtcodes/pulls?q=is%3Apr+is%3Aclosed+author%3Aamirebrahimi

[amirebrahimi]

Sure thing, @HuangJunye.

yaleqc/qtcodes#51 (fixed some tutorial issues)
yaleqc/qtcodes#57 (removed pydot dependency)
yaleqc/qtcodes#58 (added rectangular surface code geometry support)
yaleqc/qtcodes#69 (refactored repetition qubit to be an XXZZ surface code and also added a phase-flip protected version)
yaleqc/qtcodes#72 (consolidated various tests throughout the project to use common code)