David Byfield
davidbyfield.bsky.social
David Byfield
@davidbyfield.bsky.social
PhD Student @ University of Edinburgh, part-time QEC & Software @ Riverlane. Views my own etc
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
July 28, 2025 at 10:22 AM
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👇🧪
Mark L. Turner, Earl T. Campbell, Ophelia Crawford, Neil I. Gillespie, Joan Camps
Scalable decoding protocols for fast transversal logic in the surface code
https://arxiv.org/abs/2505.23567
May 30, 2025 at 8:56 AM
Reposted by David Byfield
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
December 10, 2024 at 5:33 AM