We study the structure and transversal logical capabilities of stabilizer quantum error correcting codes. Among our results, we identify universal lower bounds on circuit depth to generate a full logi...

The realisation of utility-scale quantum computing inextricably depends on the design of practical, low-overhead fault-tolerant architectures. We introduce the Pinnacle Architecture, which uses quantu...

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Craig Gidney's computer science blog

For those of you who haven’t seen, there were actually two “bombshell” QC announcements this week. One, from Caltech, including friend-of-the-blog John Preskill, showed how to do quantum faul…

Syndrome extraction in the planar color code is complicated by high weight stabilizers and hook errors that can reduce the circuit-level distance. With a single auxiliary qubit per plaquette, any spat...

So, a group based in Sydney, Australia has put out a preprint with a new estimate of the resource requirements for Shor’s algorithm, claiming that if you use LDPC codes rather than the surfac…

Les sciences et technologies quantiques reposent sur la capacité de contrôler individuellement des objets quantiques. Nées de la rencontre entre physique, informatique et mathématiques, elles s’appuient sur des concepts fascinants comme la superposition et l’intrication pour ouvrir des perspectives inédites : calculs ultra-puissants, capteurs d’une précision extrême et communications inviolables. À UPCité, recherche, formation et innovation s’unissent pour accélérer la transition vers une nouvelle ère scientifique et technologique.

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After experiencing one of the wettest holiday seasons on record, still soggy California hit a major milestone this week — having zero areas of abnormal dryness for the first time in 25 years.

We decided to try to stimulate the olfactory bulb with focused ultrasound. As far as we know, no one seems to have done this kind of stimulation before - even in animals.

The CBD report on GM trees recommends a precautionary approach to the use of GM trees. A ban would be better.

Radiology combines digital images, clear benchmarks, and repeatable tasks. But demand for human radiologists is ay an all-time high.