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David Byfield

@davidbyfield.bsky.social

219 followers 178 following 7 posts

Incoming Quantum Informatics DPhil student @ Oxford University, currently University of Edinburgh, via QI CDT. Part-time QEC & Software @ Riverlane. Views my own etc

Posts Replies Media

Reposted by David Byfield

Georgia Nixon @georgianixon.bsky.social · 19/06/2026

New paper out today! We introduce Vine Codes, a novel way to generate qLDPC codes on a planar square grid. By dynamically updating data and measure qubit positions, Vine Codes generate non-local stabiliser support with only nearest neighbour gates. Have a read here! scirate.com/arxiv/2606.2...

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David Byfield @davidbyfield.bsky.social · 19/06/2026

Very exciting, congratulations! 🎉

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Reposted by David Byfield

Jens Eisert @jenseisert.bsky.social · 19/06/2026

Nearest-neighbour gates are all you need: High-rate quantum low-density parity-check codes on a planar grid. scirate.com/arxiv/2606.1...

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David Byfield @davidbyfield.bsky.social · 19/06/2026

Very exciting to see this! Congratulations on the great work.

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Reposted by David Byfield

Joschka Roffe @qec.codes · 20/05/2026

TartanQEC Workshop | University of Edinburgh 24-26 June. The full programme is now available. Poster submissions are still being accepted & registration deadline is 1st June. Sign up now 👇 qec.codes/tartan2026/t...

qec.codes

TartanQEC Timetable

TartanQEC Workshop timetable, 24-26 June 2026, School of Informatics, University of Edinburgh.

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David Byfield @davidbyfield.bsky.social · 05/03/2026

Super nice result from my colleagues @marklt.bsky.social @riverlane.com showing the NP-hard-ness of min-weight colour code decoding! scirate.com/arxiv/2603.0... 🧠

scirate.com

Minimum Weight Decoding in the Colour Code is NP-hard

All utility-scale quantum computers will require some form of Quantum Error Correction in which logical qubits are encoded in a larger number of physical qubits. One promising encoding is known as the...

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David Byfield @davidbyfield.bsky.social · 28/07/2025

In quantum bluesky fashion, here's a summary meme! @dulwichquantum.bsky.social Thanks to my wonderful collaborators, Gyorgy Geher and Archibald Ruban @riverlane.com for the great project 3/3

Spongebob destroys the folklore of qLDPC codes needing beyond square-grid hardware

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David Byfield @davidbyfield.bsky.social · 28/07/2025

We encode 4,6 and even 12 logical qubits using just 25-66% the physical qubit count of the RPC, all while having better logical performance. We think these codes open exciting new directions for QEC code design and we hope they inspire even more new ideas 🧠

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David Byfield @davidbyfield.bsky.social · 28/07/2025

New paper! ✨ scirate.com/arxiv/2507.1... ✨ We present a new family of qLDPC codes that beat the rotated planar code while only requiring square-grid (or even hex-grid!) connectivity. 1/3

scirate.com

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David Byfield @davidbyfield.bsky.social · 30/05/2025

Got AMO qubits and love doing transversal gates, but don't know how to decode them efficiently and quickly? Check out this awesome new paper from my very talented colleagues @riverlane.com ! 🧪

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Reposted by David Byfield

Campbell McLauchlan @universal-soup.bsky.social · 10/12/2024

Okay obligatory paper meme: Recently Setiawan, at Riverlane, and I released a preprint on how to tailor Floquet codes to noise that is biased towards, say, Z errors. This "X3Z3 Floquet code" could improve performance on architectures using, e.g. the heavy-hex lattice. www.arxiv.org/abs/2411.04974

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