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Shoham Jacoby @shohamjac.bsky.social · 11/06/2026

Mitigating quantum errors at #QEC26 with some good company! Come say hi if you are here @zlatko-minev.bsky.social

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Shoham Jacoby @shohamjac.bsky.social · 07/05/2026

Dude, your blog posts are superb. I am using it a lot as reading materials for new students!

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Shoham Jacoby @shohamjac.bsky.social · 06/04/2026

In their new paper, Oratomic use a bivariate bicycle code with parameters [[248,10,≤18]] (2603.28627). I thought this is a nice test for my script, and indeed it run for about half an hour and it confirmed that the distance of the code is exactly 18. Pushed the example to the repo, check it out!

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Shoham Jacoby @shohamjac.bsky.social · 20/03/2026

But turned out buying IonQ stocks in 2021 was not a bad investment.

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Shoham Jacoby @shohamjac.bsky.social · 20/03/2026

It's just less common, so I think it won't be included in the data it is trained on. While surface code simulations are definitely there.

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Shoham Jacoby @shohamjac.bsky.social · 20/03/2026

The screenshot you shared is suprisingly good relative to my experience. Will it be able it do more complicated things? For example, compare different magic state generation strategies?

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Shoham Jacoby @shohamjac.bsky.social · 17/03/2026

Great post! What I truly like about DQC is that once you are below threshold the scaling should be much simpler. But I can't wrap my head about "how close those companies are to the thresold" (including loss of course). Will we see a "below threshold" memo-exp like google's and Harvard's soon?

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Shoham Jacoby @shohamjac.bsky.social · 04/03/2026

In the paper, we benchmark these codes against hyperbolic Floquet codes as well as our initial constructions, and find state-of-the-art parameters and logical error rates. I hope you enjoy reading about them! arxiv.org/abs/2603.00228

arxiv.org

Stairway Codes: Floquetifying Bivariate Bicycle Codes and Beyond

Floquet codes define fault-tolerant protocols through periodic measurement sequences that drive a dynamically evolving stabilizer group. They provide a natural framework for hardware supporting two-qu...

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Shoham Jacoby @shohamjac.bsky.social · 04/03/2026

move diagonally through spacetime—like a stairway. This observation, combined with some ZX-calculus wizardry, led to a new family of codes that we call "Stairway Codes." >>

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Shoham Jacoby @shohamjac.bsky.social · 04/03/2026

Our early attempts were not good enough, until Fernando noticed something important. By using the locality of BB codes in higher dimensions (six+time, in our case), we can identify worldlines that do not follow the original time direction, but instead...

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Shoham Jacoby @shohamjac.bsky.social · 04/03/2026

which achieve very good distances and rates with relatively small block sizes. So we thought: maybe we can build one ourselves.

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Shoham Jacoby @shohamjac.bsky.social · 04/03/2026

When we started looking for high-rate Floquet codes, we found that there are surprisingly few examples in the literature. In particular, there was nothing comparable to the static bivariate bicycle (BB) codes, >>

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Shoham Jacoby @shohamjac.bsky.social · 04/03/2026

Very proud of this new preprint on arXiv, co-authored with #AlexRetzker and #FernandoPastawski. We introduce a new family of quantum codes that can be implemented entirely with two-qubit parity measurements, achieving high rates and large distances. >>

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Shoham Jacoby @shohamjac.bsky.social · 14/02/2026

a very impressive result! Also, we need to understand how to create this kind of connectivity with superconducting qubit (since they assume 1usec QEC round)

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Shoham Jacoby @shohamjac.bsky.social · 21/01/2026

That's a very cool result. Thank you for sharing. Do you think that hardware platforms will be able to achiveve a bias of 2e6?

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Shoham Jacoby @shohamjac.bsky.social · 19/01/2026

Can you elaborate on the first point? Are you talking about physical or logical error rates?

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Shoham Jacoby @shohamjac.bsky.social · 07/01/2026

Thank you for reading! That is true, just took it as an easy example. The code should work for any stim circuit. I have tested it with other circuits as well :)

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Shoham Jacoby @shohamjac.bsky.social · 29/12/2025

Cool Is the generator weight is the same as the stabilizer weight?

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Shoham Jacoby @shohamjac.bsky.social · 29/12/2025

Tried it a few months ago, works great, thanks!

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Shoham Jacoby @shohamjac.bsky.social · 27/11/2025

Oh! I have one: arxiv.org/abs/2504.029...

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Reposted by Shoham Jacoby

Or Golan @orgq.bsky.social · 10/09/2025

Remember, remember the 5th of September, the "cultivate with fold-transversal S" publication plot.

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Reposted by Shoham Jacoby

Yotam Vaknin @yotamvaknin.bsky.social · 08/09/2025

Exciting day for magic state generation! I'm taking a quick break from changing diapers to let you all know we updated our Cultivation paper with new protocols! @shohamjac.bsky.social @arnegrimsmo.bsky.social #AlexRetzker

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