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Reposted by Christophe Vuillot

Arthur Pesah @arthurpesah.bsky.social · 27d

New paper out ✨

Fault-tolerant Transformation of Spacetime Codes, a collaboration w/ @vasmer.bsky.social, Austin Daniel & Ilan Tzitrin, which started during my internship @xanaduai.bsky.social

scirate.com/arxiv/2509.0...

Let's now see if I can summarize 101 pages (🙈) in a few tweets (and memes!)

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Reposted by Christophe Vuillot

Bob Coecke @coecke.bsky.social · Sep 1

Hi, I am here! Will mostly post about Quantum Foundations/Computing and Quantum Music.

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Christophe Vuillot @christophe.vuillot.info · Aug 28

You forgot
Example 0: trivial group

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Christophe Vuillot @christophe.vuillot.info · Aug 25

Ça me rappelle l'histoire de la tuile aperiodique quand même fr.wikipedia.org/wiki/David_S...

David Smith (mathématicien) — Wikipédia

fr.wikipedia.org

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Reposted by Christophe Vuillot

Alexis Morvan @amorvan.bsky.social · Aug 22

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!

Colour Codes Reach Surface Code Performance using Vibe Decoding

Two-dimensional quantum colour codes hold significant promise for quantum error correction, offering advantages such as planar connectivity and low overhead logical gates. Despite their theoretical ap...

arxiv.org

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Reposted by Christophe Vuillot

Error Correction Zoo @eczoo.bsky.social · Aug 15

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...

\([[8,3,2]]\) Surface code on a cube

An [[8,3,2]] twist-defect surface code whose qubits lie on the vertices of a cube. It is obtained by three-coloring the faces of a cube and placing X, Y, and Z stabilizer generators on each pair of fa...

errorcorrectionzoo.org

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Reposted by Christophe Vuillot

Diego Ruiz @diego-ruiz.bsky.social · Jul 18

Probably the last paper of my PhD! We show that biased-noise qubits can greatly reduce the cost of magic state preparation

With high noise bias, just 53 qubits and ~10 error correction cycles are enough to prepare a magic state with logical error≈1e-7
arxiv.org/abs/2507.12511

Unfolded distillation: very low-cost magic state preparation for biased-noise qubits

Magic state distillation enables universal fault-tolerant quantum computation by implementing non-Clifford gates via the preparation of high-fidelity magic states. However, it comes at the cost of sub...

arxiv.org

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Christophe Vuillot @christophe.vuillot.info · Jun 14

Le Palais de la découverte a besoin de soutient ! C'est un musée des sciences vraiment réussi et pour tous les âges !
👉 chng.it/SzH6WkfXH2
⚛️🧪

Signez la pétition

Sauvons le Palais de la découverte

chng.it

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Christophe Vuillot @christophe.vuillot.info · Jun 12

So this headline is actually wrong, right? www.nasdaq.com/articles/ins...

www.nasdaq.com

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Reposted by Christophe Vuillot

Louis Paletta @louispaletta.bsky.social · May 16

High-performance local automaton decoder for defect matching in 1D, happy to share that our new work in with Anthony Leverrier, Mazyar Mirrahimi and @christophe.vuillot.info is now available on the arXiv ! 👀 (1/6)

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Christophe Vuillot @christophe.vuillot.info · May 13

🧪⚛️🧮

Riverlane @riverlane.com · May 9

We’d love to find more #QEC experts here on BlueSky and have created this starter pack to help connect the error correction community.

It’s just a start – if you’re working QEC, please follow this account and message us. We’ll happily add you to the pack!

go.bsky.app/RiZfVco 🧪

🧵[2/2]

Riverlane's Quantum Error Correction Pack

Join the conversation

go.bsky.app

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Christophe Vuillot @christophe.vuillot.info · May 5

Is there an official announcement somewhere?

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Reposted by Christophe Vuillot

clemenson7.bsky.social @clemenson7.bsky.social · May 5

So here it is, my first first-author paper is live on the arXiv arxiv.org/abs/2505.01370

Engineering CSS surgery: a fault-tolerant CNOT for any CSS codes

We introduce a framework for implementing logic in CSS-style quantum error correction codes, building on the surgery methods of Cowtan and Burton [CB24]. Our approach offers a systematic methodology f...

arxiv.org

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Christophe Vuillot @christophe.vuillot.info · Apr 9

Anyone who can spare an invite to the "global economy dump and pump" signal group chat?

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Reposted by Christophe Vuillot

Frederik Hahn @frederikhahn.bsky.social · Apr 9

Yes, thanks to @arrr.de and the German National Library of Science and Technology in Hannover (TIB, www.tib.eu) :)

bsky.app/profile/arrr...

Henrik Wilming @arrr.de · Mar 10

I have a positive update regarding this matter:
The German National Library of Science and Technology in Hannover (TIB, www.tib.eu) confirmed that they will download and archive the entire arxiv.org as a safety measure.

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Christophe Vuillot @christophe.vuillot.info · Apr 9

Someone backed up arxiv.org yet?

arXiv.org e-Print archiveopen searchopen navigation menucontact arXivsubscribe to arXiv mailings

arxiv.org

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Dave Bacon @dabacon.tachyon.institute · Apr 4

Quantum is interesting because it is making a transition from one of culture to another. (Has made?) But we can still fight to keep quantum weird!

Michael Nielsen @michaelnielsen.bsky.social · Apr 4

A friend was telling me recently about getting together with lots of old-time quantum computing folks. They all work for companies now, and could only talk much more guardedly and broadly than in former times

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Reposted by Christophe Vuillot

Alexis Morvan @amorvan.bsky.social · Mar 26

In 1h (9am PST or 5pm CET) I will give a talk at the QASAR seminar hosted by @vasmer.bsky.social and @christophe.vuillot.info . I will present our work on implementing 3coupler, walking and iSWAP surface codes!

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Christophe Vuillot @christophe.vuillot.info · Mar 21

@alice-and-bob.bsky.social

Christophe Vuillot @christophe.vuillot.info · Mar 21

Two talks of Alice&Bob QEC team in parallel this morning:

@diego-ruiz.bsky.social presented his new results on distillation with biased-noise qubits: with bias=30 he already gets 150x reduction!

I talked about implementing rotor codes

So many fun subjects to work on, join our team we are hiring!🐱

Diego presenting his work under the expert eye of Craig Gidney

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Christophe Vuillot @christophe.vuillot.info · Mar 15

I'll be at the @apsphysics.bsky.social March Meeting next week in Anaheim.

I have a talk on Friday about quantum rotor codes, protected superconducting qubits and tiger codes in the advances in quantum error correction session.

Also come talk to me whenever!

Christophe Vuillot @christophe.vuillot.info · Mar 11

The QEC team at Alice & Bob is hiring ! Come work with me on 🐈 cat codes, 🐅 tiger codes, decoding, biased-noise, distillation, LDPC codes, ...
👇
jobs.lever.co/alice-bob/c0...

Alice & Bob - Staff QEC Research Scientist

The Quantum Error Correction (QEC) team at Alice & Bob is tasked with continuously improving the fault-tolerant architecture by finding innovative ways to reduce the need for and cost of fault toleran...

jobs.lever.co

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Christophe Vuillot @christophe.vuillot.info · Mar 11

The QEC team at Alice & Bob is hiring ! Come work with me on 🐈 cat codes, 🐅 tiger codes, decoding, biased-noise, distillation, LDPC codes, ...
👇
jobs.lever.co/alice-bob/c0...

Alice & Bob - Staff QEC Research Scientist

The Quantum Error Correction (QEC) team at Alice & Bob is tasked with continuously improving the fault-tolerant architecture by finding innovative ways to reduce the need for and cost of fault toleran...

jobs.lever.co

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Reposted by Christophe Vuillot

Diego Ruiz @diego-ruiz.bsky.social · Feb 14

First realization of a dissipatively stabilized squeezed cat qubit (a slight variation that we called a moon cat 🌛 actually), it was super interesting to work on this with experimentalists!
arxiv.org/abs/2502.07892
My two key takeaways ⬇️⬇️

Enhancing dissipative cat qubit protection by squeezing

Dissipative cat-qubits are a promising architecture for quantum processors due to their built-in quantum error correction. By leveraging two-photon stabilization, they achieve an exponentially suppres...

arxiv.org

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Reposted by Christophe Vuillot

QIP 2025 Conference @qip2025.bsky.social · Feb 12

Our fourth and final tutorial of QIP 2025 is by Dakshita Khurana from UIUC about Quantum Cryptography and TCS (Sun Feb 23, 2-5:30pm, Room 302ABC). Overview below!

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Reposted by Christophe Vuillot

QIP 2025 Conference @qip2025.bsky.social · Feb 12

Our third tutorial of QIP 2025 is “Quantum error correction: a guided tour" by Victor Albert (@vva.bsky.social) from NIST and QuICS, who will gently introduce and visit increasingly important corners of the mega-field of QEC (Sun Feb 23, 9am-12:30pm, Room 302ABC). Overview below:

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