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...
David Byfield
@davidbyfield.bsky.social
Quantum Informatics DPhil Student @ Oxford University via QI CDT, previously software @ Riverlane. Views my own etc
Nearest-neighbour gates are all you need: High-rate quantum low-density parity-check codes on a planar grid. scirate.com/arxiv/2606.1...
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...
TartanQEC Timetable
TartanQEC Workshop timetable, 24-26 June 2026, School of Informatics, University of Edinburgh.
qec.codes
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... 🧠
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...
scirate.com
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
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 ! 🧪
👻 We ain’t afraid of no ghost! A new #arXiv paper from our team proposes the 'ghost protocol’ to enable AMO qubits to catch up with superconducting qubits, which lag in #QEC cycle speeds. It addresses the challenges of scalable #QuantumErrorCorrection in the context of fast transversal logic👇🧪
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