Ever wanted to use virtual Z gates with arbitrary powers of SWAP? Introducing the virtual Z pulse: arxiv.org/abs/2509.13453. In our new article, we present a method for distorting a pulse sequence to implement single-qubit Z controls virtually.

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

How fast can quantum processors run? My coauthors and I answer in our new npj Quantum Information article! Utilising pulse engineering, we prepare molecular ground states in a few nanoseconds, ~100× faster than with gates. Back-of-the-envelope: Simulations can now tolerate T₁ and T₂ ~100× smaller.

Hi all! I am excited to finally share this suite of quantum optimal control libraries that run up to 100× faster than QuTiP for some tasks. We developed these libraries while working on our preprint arxiv.org/abs/2406.10913, which was recently accepted into npj Quantum Information—keep tuned! (1/7)

I remember getting a $300k grant 10 years ago to perform non-abelian braiding in 2 years It is funny, but it is also sad. "The people" want miracles from science, right now, and for free. If one is achieved, they move on immediately and just want more, different, fresh like distracted children.

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An open call for all #QuantumErrorCorrection researchers to now summarise their work in the form of memes please 🙂 - nice work @katutxakur.bsky.social et al (both the paper and meme!) #QECpapers

Check out our latest preprint! The meme summarizes it.

I'm often asked if I'll redo the 2019 quantum factoring estimate. Denser storage by yokes, smaller magic factories by cultivation, slimmer approx arithmetic by Chevignard et al… surely the cost is lower now? Yes, it's lower now. security.googleblog.com/2025/05/trac... arxiv.org/abs/2505.15917

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]

"By the time we get to million qubits, I will be dead." --John Martinis Industry expectations vs actual progress in one of his slides:

Check out our latest preprint: SpinHex: A low-crosstalk, spin-qubit architecture based on multi-electron couplers. scirate.com/arxiv/2504.0...

Estas cosas no hacen más que acentuar la desconfianza de los jóvenes en la carrera académica. Lo que necesitamos son inversiones recurrentes, planificadas y predecibles. 1/

"overcome your inner resistance; it is always a mistake to try to do things too cleverly" - Einstein in a letter to Leo Szilard

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!🐱

Improving devices before entering commercialization phase: not bullshit

En España hay 11.914 personas con una fortuna superior a los 30 millones de dólares. ¿Sabías que gracias a Ayuso dos de cada tres ultrarricos españoles no pagan impuesto de patrimonio? No pagan nada porque tienen su fortuna en Madrid. Pero luego no tiene para la universidades.

I saw the best minds of my generation destroyed by madness, starving hysterical naked, dragging themselves through the academic halls at dawn applying for a new grant

“The true measure of learning is not the time and energy you put in. It’s the knowledge and skills you take out.” By @adamgrant.bsky.social www.nytimes.com/2024/12/26/o...

Check out our latest preprint "Asymptotically good CSS-T codes exist". There is also a nice discussion about in on scirate.com/arxiv/2412.0...

I created a transcript of my talk at the Q2B Conference: "Beyond NISQ: The Megaquop Machine." You can read it here: quantumfrontiers.com/2024/12/14/b...