Sam Jaques
sejaques.bsky.social
Sam Jaques
@sejaques.bsky.social
Assistant prof at U Waterloo. Aspiring full-stack cryptographer. Loves math, plants, flashcards. Opinions reflect those of all past, present, and future employers.
September 4, 2025 at 4:14 PM
I wouldn't say steady: arxiv.org/abs/2009.05045 tries to extrapolate and the data looks really noisy. E.g., fig. 8. If we put today's devices on this, the best would maybe on the orange line
June 20, 2025 at 8:55 PM
Craig Gidney's work tackles that question: arxiv.org/abs/2505.159.... Check out the figures in the appendix: the physical qubits are used quite densely!
June 20, 2025 at 12:40 AM
An out-of-schedule update to my quantum landscape chart: sam-jaques.appspot.com/quantum_land..., prompted by
@craiggidney.bsky.social 's new paper: arxiv.org/abs/2505.15917.

A startling jump (20x) in how easy quantum factoring can be!

Also: much improved web design!
June 19, 2025 at 6:52 PM
Dang, AI is really making the Internet suck
May 1, 2025 at 9:05 AM
April 23, 2025 at 12:57 AM
uh oh
April 1, 2025 at 12:08 AM
Opsec level: underfunded provincial museum
January 25, 2025 at 5:52 PM
2024 update for my chart on the landscape of quantum computing: sam-jaques.appspot.com/quantum_land...

Not much visible on the chart, but Google's result (the one with the recent press attention) is a pretty big deal
December 12, 2024 at 5:30 PM
Props to Google for putting their RCS result at the absolute bottom of the "usefulness" axis:
December 12, 2024 at 3:48 PM
Cryptographers last week:
October 24, 2024 at 1:37 AM
Second, this graph! This shows that they have clearly passed the threshold of the surface code. Compare to the graph on the right, which was a *simulation* of surface codes published in 2012. Amazing to see the theory be realized, 11 years on.
August 28, 2024 at 3:24 PM
First, the main result: Look at this error suppression! Especially compared to their result from 2 years ago. Higher distance clearly gives lower error rates, and they've shot past their physical error rates. They made a real logical qubit.
August 28, 2024 at 3:20 PM