Joan Camps

@CraigGidney String theorists may appreciate the construction.

A surface code that goes from a normal tiling to one where each row keeps using half as many qubits as the last. I can't think of a reason to do this, but it's visually interesting.

LUCI takes 4 ‘contraction layers’ (16 CNOTs, 4 measure-resets) for a syndrome extraction round. ACID takes 2 or 3. Example circuit here stasiu51.github.io/Shatter-Forwar… (I also hacked Craig Gidney’s Crumble to help with visualisation).

@adamsolo There is a lot of fun and fulfillment to be had outside. :)

Physics friends who left academia or have a sense of what’s out there, please reach out.

@QuantaMagazine @nattyover this one was a pretty big deal in quantum computation: quantamagazine.org/quantum-comput…

Here are some of the biggest breakthroughs in physics this year 🧵

RT @RiverLane_io: Now on the arXiv: a major step towards reaching one-million error-free quantum operations (aka the MegaQuOp) Riverlane’s…

@DrTonyPadilla @numberphile @sixtysymbols I love hearing/reading Nick Lane from UCL. He's been a guest in some v cool episodes, including Lex Fridman, Sean Carroll, and I've recently enjoyed an "In our time" on mitochondria.

Once again, Lluis Masanes surprises me with a new topic. This time: a discrete version of AdS/CFT for spins. What never changes is his originality and competence. #vqf24 @iqoqivienna

please apply for this job I have too many good ideas wrkbl.ink/6OAoStN

@gunsnrosesgirl3 Barcelona

A bus service in Spain

Having a great time trying to correct our #quantum errors in #Benasque, #Spain at the Fault Tolerant Quantum Technologies workshop @FTQTBenasque. Great talks, great discussions, making new and meeting old friends. Who do you recognize in the picture?

Now @RiverLane_io represented by @quantumcamps

So far the list is looking like me, me, riverlane, me, riverlane, riverlane, me, oscar. Surely we're not the only ones making circuits available?

💥 Pow! Our Collision Clustering decoder packs quite the (#quantum error-correcting) punch – allowing arbitrarily long memory experiments to run in a hardware decoder for the first time. Find out more: riverlane.com/news/riverlane… @Kenton12323

🚀 Introducing Riverlane’s Quantum Error Correction roadmap We’ve building the first prototype of a MegaQuOp-scale QEC stack by the end of 2026 – aka Deltaflow Mega, with intermediate releases every year. How? A 🧵... (1/7)

I've been quiet on X lately. But one thing you can always rely on X for is a good place to plug job vacancies. We're hiring! With some big plans ahead (watch this space for news). QEC researchers apply.workable.com/riverlane/j/47… and a more senior role apply.workable.com/riverlane/j/C1…

Introducing Amiguity Clustering, a new decoder for general qLDPC codes more accurate and 150x faster than BP-OSD at realistic physical error rates. We can decode IBM's 144-qubit 'Gross code' in 280μs with no loss of logical fidelity over BP-OSD. arxiv.org/abs/2406.14527

@javier110 Que no hay solución en dimensión finita se puede ver sacando la traza de [A, B] = i, que da 0 = i * dim(H)

Dada una matriz hermítica A, ¿existe otra B, también hermítica, tal que el conmutador dé i por la identidad? O sea: [ A , B ] = i

Estaba pensando en cosas de cuántica y de repente me ha venido una cuestión, de esas que dices: "cómo no me he hecho esa pregunta antes??". La pregunta es:

💧 New research alert! Read our (award-winning!) arXiv paper for simulating a little-understood type of quantum noise - leakage. 📣It's the first sim of a stability expt AND shows how you can use leakage mobility to fight leakage: scirate.com/arxiv/2406.040… #quantum

@HyperboIeva @PBSSpaceTime @preskill Here is a take from the horse's mouth: sptfy.com/QSoK

@alexhrubin Benasque :D