preskill.bsky.social - Profile | ThreadSky | a Reddit-style client for Bluesky

Today Nature published measurement results from Ocelot, the new quantum chip created at the AWS Center for Quantum Computing at Caltech. There is still far to go, but we hope that Ocelot’s unique architecture will shorten the path to quantum utility that benefits the world.

submitted 10 hours ago • 2 comments

Six our of eight randomly selected @qip2025.bsky.social attendees have been @caltech.edu as student, postdoc, or professor.

submitted 1 day ago • 1 comment

In 1999, I wrote a paper on "Quantum information and precision measurement" with two brilliant undergrads @caltech.edu, @joerenes.bsky.social and Andrew Childs. Here we are reunited @qip2025.bsky.social . (Former student @nickrhj.bsky.social is in the background.)

submitted 1 day ago • 1 comment

I have been encouraged to publish my talk at Q2B 2024. It's @arxiv-quant-ph.bsky.social today. arxiv.org/abs/2502.17368

submitted 2 days ago • 0 comments

Over 900 participants today @qip2025.bsky.social.

submitted 3 days ago • 1 comment

In their roadmap, Microsoft described a protocol for demonstrating a topologically protected qubit. There is no publicly available evidence that this test has been conducted successfully. I hope we will hear more soon. arxiv.org/abs/2502.12252

submitted 8 days ago • 2 comments

Well-informed comments from Jason: Jason Alicea, a professor of theoretical physics at the California Institute of Technology, questioned whether the company had actually built a topological qubit, saying the behavior of quantum systems is often hard to prove. /1 www.nytimes.com/2025/02/19/t...

submitted 8 days ago • 3 comments

I'm glad to be at the University of Maryland to celebrate 10 years of exciting scientific contributions from QuICS. And we're proud that 7 of the QuICS Fellows passed through Caltech as students and postdocs.

submitted 35 days ago • 0 comments

I appreciate these lessons compiled by @nicoleyh11.bsky.social. Perhaps the most important is Lesson #9: Do what excites you most. quantumfrontiers.com/2025/01/19/t...

submitted 38 days ago • 0 comments

"Ask us anything" with Scott Aaronson and Yuval Boger at Q2B24. www.youtube.com/watch?v=Qdyd...

submitted 43 days ago • 0 comments

Video now available: My keynote at Q2B24 "Beyond NISQ: The Megaquop Machine" www.youtube.com/watch?v=uwBv...

submitted 43 days ago • 0 comments

Useful perspective, clearly written and well-reasoned. arxiv.org/abs/2501.05694

submitted 44 days ago • 1 comment

Video of my talk at UT Austin on November 15: "Steve Weinberg's Universe" www.youtube.com/watch?v=Q1Es... The slides I presented are here: preskill.caltech.edu/talks/Preski...

submitted 54 days ago • 1 comment

Citation counts continue to defy my expectations. scholar.google.com/citations?us...

submitted 56 days ago • 0 comments

My website has migrated to a more stable and secure server. Links to the old site should redirect automatically. The new site is: preskill.caltech.edu

submitted 60 days ago • 1 comment

"While Willow represents an advance in technology with its reduced error rates, the promise of quantum computing is still years off." www.barrons.com/articles/qua...

submitted 69 days ago • 0 comments

Congratulations to all who contributed to the advances in quantum error correction recognized by the Physics World Breakthrough of the Year. physicsworld.com/a/two-advanc...

submitted 70 days ago • 3 comments

In this fascinating interview, Ignacio Cirac and Peter Zoller reminisce about how their ideas turned quantum computing into an experimental subject 30 years ago. www.youtube.com/watch?v=-X1v...

submitted 71 days ago • 0 comments

This year's "The State of Quantum Computing", i.e., John Preskill's Q2B Keynote. Say hello to "Megaquop computing", and goodbye to NISQ. Thank you, John, for your consistent insights and contributions.

submitted 75 days ago • 0 comments

"We're making Illinois the global quantum capital and the center for job growth in the quantum industry ...," said Governor JB Pritzker. newsroom.ibm.com/2024-12-12-i...

submitted 75 days ago • 0 comments

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...

submitted 75 days ago • 0 comments

Slides for my talk today at #Q2B: "Beyond NISQ: The Megaquop Machine." www.preskill.caltech.edu/talks/Preski...

submitted 78 days ago • 1 comment

Kicking off day two of #Q2B2024 is the esteemed @preskill.bsky.social at his 8th edition of the event. This time around, a talk on his idea of the “Megaquop Machine”, a post-NISQ framing.

submitted 78 days ago • 2 comments

I'm glad to be back at #Q2B for the 8th year in a row. Looking forward to my keynote tomorrow at 9am and an "Ask Us Anything" with Scott Aaronson and Yuval Boger on Thursday at 5pm. q2b.qcware.com/2024-confere...

submitted 78 days ago • 1 comment

I was thrilled to hear about the surface code when Alexei Kitaev visited @caltech.edu in April 1997. It's heartening to see the hardware catching up with the theory of quantum error correction. There's still far to go but this is encouraging progress. www.quantamagazine.org/quantum-comp...

submitted 80 days ago • 1 comment

Two-dimensional superconductors get even more confusing. Exciting times. www.quantamagazine.org/exotic-new-s...

submitted 80 days ago • 2 comments

We had so much fun in my first-year seminar “Quantum information science today and tomorrow;” I was blown away by the brilliance and enthusiasm of the students. L to R: Toby, Joel, Mitchell, Hardit, me, Max, Amudhan, Jason, Priyanka, Benjamin (all freshmen @caltech.edu ).

submitted 81 days ago • 0 comments

Hsin-Yuan Huang, Richard Kueng and @preskill.bsky.social 2020 @naturephysics.bsky.social article "Predicting many properties of a quantum system from very few measurements" inspirehep.net/literature/2... reaches 1,000 citations. #topcites

submitted 84 days ago • 0 comments

On November 15, I spoke about my PhD advisor Steve Weinberg at a conference in his honor at the University of Texas. Slides from my talk are here: preskill.caltech.edu/talks/Preski...

submitted 83 days ago • 2 comments

Rob Schoelkopf predicts that using dual-rail superconducting qubits (for which most errors are detectable) will reduce the overhead cost of quantum error correction by "orders of magnitude." podcast.the-new-quantum-era.com/41

submitted 96 days ago • 1 comment

I am very proud of our new paper on simulations of scattering processes in (1+1)-dimensional quantum field theory. All the hard work was done by my co-authors Raghav Jha, Ash Milsted, Dominik Neuenfeld, and Pedro Vieira. arxiv.org/abs/2411.13645

submitted 97 days ago • 2 comments

Among the Ultra-Quantum Matter mavens in Lake Arrowhead, CA with former students Jeongwan Haah and Isaac Kim and current postdoc @Caltech.edu Dan Ranard.

submitted 97 days ago • 0 comments

Happy to announce that our paper on real-time scattering in Ising field theory using tensor networks is now on arXiv. Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun! arxiv.org/abs/2411.13645

submitted 97 days ago • 1 comment

Future basement of the Ginsburg Center for Quantum Precision Measurement ⁦at Caltech.

submitted 100 days ago • 3 comments

My secret formula for scientific success: Wonderful students and postdocs who teach you far more than you could teach them. quantumfrontiers.com/2024/02/19/a...

submitted 373 days ago • 1 comment

I'm excited and honored to receive the 2024 Bell Prize. cqiqc.physics.utoronto.ca/news/recent-...

submitted 386 days ago • 4 comments

It's fun to hear the voices of Feynman and some of us who knew him. Part 1 of a 3-part series. freakonomics.com/podcast/the-...

submitted 391 days ago • 0 comments

"NIST has extended the standardization process ... to study algorithms that are not lattice-based. “Our goal in this is not to depend on any one mathematical family for the algorithms we select,” explains Dustin Moody, a mathematician at NIST. www.scientificamerican.com/article/tomo...

submitted 400 days ago • 0 comments

Now on YouTube. My keynote at Q2B 2023: "Crossing the Quantum Chasm: From NISQ to Fault Tolerance" www.youtube.com/watch?v=aq6F...

submitted 420 days ago • 0 comments