The 14th International Workshop on Coding and Cryptography (WCC 2026) will be held June 8-12, 2026, in Paris, France. Event details and information can be found here: wcc2026.inria.fr
Posts by Error Correction Zoo
We are living in exciting times. Starting today, the zoo will be completely redone by AI! errorcorrectionzoo.org/__41ai
Assuming these estimates hold up, the number of physical qubits already made in the lab and the number required for running utility-scale algorithms would be, for the first time, in the same ballpark. Given Google's parallel paper and move to scope out atom platforms, people are starting to notice.
On the hardware side, serious players will be looking to create scalable foundry-level tools for atom-based devices like those for chip-based hardware. One thing Team Atoms always has going for them: Nature made all atoms identical!
Many gadgets have yet to be fully optimized for the QLDPC + neutral atom combination. This optimization is crucial, as atom-based platforms are natively slower than chip-based platforms by orders of magnitude.
Shor's algorithm has lots of moving parts, and runtimes are improving every year. The non-geometrically local connectivity of neutral atoms enables further reductions using QLDPC codes. There is plenty of room at the bottom here: QLDPC is the bleeding edge.
The paper punts the LLM-assisted QEC codes used for the time-efficient estimate to future work. We are left to speculate why they were omitted. Perhaps time pressure, perhaps novel constructions too hard to explain for now.
The forward-looking Oratomic time-efficient architecture claims to "potentially enable runtimes of 10 days for ECC–256 with ≈26,000 qubits, and 97 days for RSA–2048 with ≈102,000." This is based on stitching together several gadgets and plausibly assuming they can work together on an atom platform.
Here are videos and slides of my 6 hour overview of QEC, slightly updated from my @qip2025.bsky.social tutorial. Thanks goes to Kishor Bharti and Atul Arora for letting me give this at the Quantum Meets! www.youtube.com/playlist?lis... zenodo.org/records/1874...
Now with quotes!
Critiques of modern wireless communication theory by the giants, Viterbi and Gallagher. Also, a short introduction to the Shannon paradigm.
rs-ojict.pubpub.org/pub/pw5st68m...
rs-ojict.pubpub.org/pub/pg25jymv...
Check out a feature about the Zoo by Doraking, featuring Zootopia's Judy Hopps as the surface code! dev.to/doraking/qua...
Submissions are open for the 14th edition of the biannual Workshop on Coding and Cryptography (WCC) on June 8 to 12, 2026, at the @fondation-inria.bsky.social Research Center in Paris. wcc2026.inria.fr
We still can't prove why turbo codes work this well! errorcorrectionzoo.org/c/turbo
Turbo codes were shown experimentally to nearly achieve Shannon capacity, and information theorists didn't believe that a telecom engineer was able to solve this longstanding problem.
Peter Shor: we haven't found many new quantum algorithms, in part, because we need larger quantum devices for testing our heuristics. He gives several examples of algorithms that were discovered computationally, including turbo codes, @fermilab.bsky.social quantum symposium by the SQMS center.
"After all the manipulation, the qubits are read, collapsing their quantum state into either a zero or one. Bur there's a catch..." Nice @pbs.org documentary with epic animations. youtu.be/t06aTX9jM34?...
"Third, implementation of real-time QEC with sufficiently high throughput and latency may favor using simple decoders (e.g., cellular automata), which may not be compatible with the most resource-efficient QEC codes."
"Second, we may double-down on codes with access to fast transversal gates, such as surface codes and color codes, despite their suboptimal encoding rates."
"First, in the long term we advocate for transitioning away from Pauli-based computation, in order to implement gates in parallel. This results in the need to implement Clifford gates explicitly."
Big-picture analysis from @awscloud, warning about the currently slow clock speed of quantum computers. arxiv.org/abs/2510.26078
Quote by W. Wesley Peterson in a 1962 Scientific American article somewhat rings true today, except with "quantum" everywhere.
"For decades, experimental progress on QEC lagged far
behind theory, but this is starting to change."
*Cooper fun fact: Cooper pairs are error detecting codes, a singlet and a space part that is a symmetric |k,-k>+|-k,k>
In closing of #qec2025, we have put up our 1000th code -- the [[8,3,2]] surface code on a cube (aka the Landahl plucky code)! It is a non-CSS code different from the smallest interesting color code. Stabilizer generators are X, Y, or Z strings on the faces. errorcorrectionzoo.org/c/cubic_surf...
Peter Shor receives a small gift on the 30th anniversary of his QEC paper at #QEC2025.
Artist Stewart Smith cools down the participant "qubits" to prepare for decoding the surface code at the QEC Choir interactive art exhibit at @qec2025 at the @yaleqi.bsky.social.
@mjbiercuk.bsky.social and Q-CTRL helping out the #qec2025 conference with performance boosters.
Tutorials begin at QEC2025 at @yaleqi.bsky.social. Here is an artistic rendition of some famous codes at the Google Quantum AI tutorial.