Working on LSD was fun! - Our paper on Localized statistics decoding (LSD) for qLDPC codes is now in print.
LSD is a highly parallelizable, reliability-guided inversion decoder that exploits the clustering of errors. Think of it as a parallel version of OSD.
www.nature.com/articles/s41...

A very enjoyable collaboration @timohillmann.bsky.social, @lucasberent.bsky.social, Armanda Quintavalle, Robert Wille, and @jenseisert.bsky.social

parity-check codes. Our LSD algorithm works as a post-processor for standard belief propagation algorithms and, crucially, is designed from the bottom-up with parallism in mind. This makes it a suitable for implementation on specialised hardware (e.g., GPUs, FPGAs, ASICS) for real-time decoding.

𝘁𝗹;𝗱𝗿; Any quantum error correction (QEC) protocol is only ever as good as its decoder: a classical co-processor tasked with intrepting stabiliser measurements in real-time. In this work, we propose localised statistics decoding (LSD) as a very general decoding algorithm for quantum low-density ...

📢 Our paper, 𝗟𝗼𝗰𝗮𝗹𝗶𝘀𝗲𝗱 𝘀𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝘀 𝗱𝗲𝗰𝗼𝗱𝗶𝗻𝗴 𝗳𝗼𝗿 𝗾𝘂𝗮𝗻𝘁𝘂𝗺 𝗹𝗼𝘄-𝗱𝗲𝗻𝘀𝗶𝘁𝘆 𝗽𝗮𝗿𝗶𝘁𝘆-𝗰𝗵𝗲𝗰𝗸 𝗰𝗼𝗱𝗲𝘀, is now published in Nature Communications (Nature Portfolio). Great to see it in print!

www.nature.com/articles/s41...

Your wish will be fufilled: this will be in arXiv V2 👀

Color code decoding with some big claim: arxiv.org/abs/2508.15743

I wish they could try to benchmark this decoder against the experimental color code data from arxiv.org/pdf/2412.14256 zenodo.org/records/1423...

We are releasing experimental data so people can try out their decoding algorithms!

The QEC25 conference hosted by @yaleqi.bsky.social was really excellent, and videos of all talks are available. So much recent progress on quantum error correction!
qec25.yalepages.org

James Mills introducing Logical Accreditation to #QEC2025 at @yaleqi.bsky.social
See our recent preprint here: arxiv.org/abs/2508.05523

Check out the V2 of our qLDPC decoding paper "An almost-linear time decoding algorithm for quantum LDPC codes under circuit-level noise". The meme summarizes our approach. @qec.codes

Hardware-tailored logical Clifford circuits for stabilizer codes

scirate.com/arxiv/2505.2...

This first first author paper of Eric appeared yesterday, but was not picked up by Scirate. It suggests novel strategies for implementing logical Cliffords of stabilizer codes under hardware constraints.

Hardware-tailored logical Clifford circuits for stabilizer codes

arxiv.org/abs/2505.20261

It is important to identify strategies for implementing Clifford unitaries at the logical level of stabilizer codes in #quantumerrorcorrection, respecting hardware constraints. Here is one such strategy.

📣 New pre-print on the arXiv today on generalisation of surface code lattice surgery to arbitrary CSS codes w/ Clément Poirson and Robert Booth. Congrats to @clemenson7.bsky.social on his first paper! 🎉

Thanks you!

The group's research include:

- Investigating new QEC protocols.
- Designing QEC decoding algorithms for specialised hardware.
- Logical gates for fault-tolerant logic.
- Design and implementation of QEC experiments,
- Developing open-source QEC software.

More details soon!

My group will tackle both the theoretical and practical challenges of building fault-tolerant quantum computers.

I'll be advertising postdoctoral research positions soon. Please get in touch if you're interested in joining or collaborating.

Happy World Quantum Day! I'm excited to announce that I will be starting a new group dedicated to quantum error correction (QEC) at The University of Edinburgh Quantum Software Lab, funded by an EPSRC Quantum Technology Career Acceleration Fellowship!

📣 New paper: Computing Efficiently in QLDPC Codes w/ @TeamPhotonic! Lots of great stuff here:

- New subsystem codes w/ transversal gates that efficiently compile full Clifford Group.
- Single-shot decoding
- Huge circuit-level logic sims

scirate.com/arxiv/2502.0...

🚨Reminder: The deadline to apply for the Quantum Informatics CDT is tomorrow (15th Jan). Apply below 👇

www.quantuminformatics-cdt.ac.uk

Submissions for QEC 2025 are now open through March 28.

This will easily be the most exciting conference on quantum error correction yet!

Conference homepage:
qec25.yalepages.org

EasyChair submission page:
easychair.org/my/conferenc...

@physicssteve.bsky.social's Inside Quantum Podcast has two seasons and over 20 episodes in total. Highly recommended insidequantum.org

Yes. They are two separate programmes. You can apply for both.

Ah wow. This is amazing! Is it in a Github repo so we can contribute?

I'll see if the repo can be moved to the Quantum-journal GitHub organisation. Arxiv PDF upload would work. You could also upload the typst source alongside that, so the experience wouldn't be much different than with LaTeX