John Preskill

Caltech's Pioneering Quantum Hub Celebrates 25 Years John Preskill reflects on the history and impact of IQIM

The Institute for Quantum Information (and Matter) @caltech.edu is celebrating its 25th anniversary. It has been a great run so far, and quantum information science is more fun now than ever!
www.caltech.edu/about/news/c...

"... strengthening the quantum innovation ecosystem, accelerating discoveries that power next-generation technologies, and securing American leadership in quantum computing, hardware, and applications."

Energy Department Announces $625 Million to Advance the Next Phase of National Quantum Information Science Research Centers The U.S. Department of Energy today announced $625 million in funding to renew its five National Quantum Information Science Research Centers.

The DOE National Quantum Information Science Research Centers continue their mission.
www.energy.gov/articles/ene...

The sequel This October, fantasy readers are devouring a sequel: the final installment in Philip Pullman’s trilogy The Book of Dust. The series follows student Lyra Silvertongue as she journeys from Oxford to…

"... physicists adore apparent contradictions ..."
Yes we do! Doesn't everyone?
quantumfrontiers.com/2025/10/26/t...

The annual retreat of @caltech.edu's Institute for Quantum Information and Matter (IQIM) is an opportunity to spend the weekend with some of my favorite scientists. It is always an uplifting and illuminating experience.

Now under construction: The bridge connecting research on quantum matter and quantum information in the Ginsburg Center @caltech.edu to the high energy theory group in Downs-Lauritsen Laboratory. Exciting!

We are optimistic about the quantum future, but there's a lot of work to do.

Mind the gaps: The fraught road to quantum advantage Quantum computing is advancing rapidly, yet substantial gaps separate today's noisy intermediate-scale quantum (NISQ) devices from tomorrow's fault-tolerant application-scale (FASQ) machines. We ident...

When and how will quantum computing broadly benefit humanity? Despite exhilarating recent progress, we still don’t know. Here my friend Jens Eisert and I assess the current status and the challenges ahead.
arxiv.org/abs/2510.19928

This one:
journals.aps.org/prd/pdf/10.1...

Chen Ning Yang, Nobel-Winning Physicist, Is Dead at 103

Aside from Yang-Mills theory and parity nonconservation, Yang made so many profound contributions to physics! One that deeply impressed me as I was starting grad school: a 1975 paper with T. T. Wu highlighting the role of fiber bundles in gauge theory.
www.nytimes.com/2025/10/18/s...

Rigorous approach quantifies and verifies almost all quantum states Quantum information systems, systems that process, store or transmit information leveraging quantum mechanical effects, could, in principle, outperform classical systems in some optimization, computat...

Thanks, Ingrid Fadelli, for this nice article about our recently published paper with Robert Huang and Mehdi Soleimanifar. The paper describes a surprisingly simple protocol for verifying that a many-qubit state in the lab matches a desired target state.
phys.org/news/2025-10...

Building on this achievement, Devoret, Martinis, and many others are constructing quantum computers, powerful tools for exploring quantum science and solving very hard computational problems. Congratulations!

Nobel Prize in Physics 2025 The Nobel Prize in Physics 2025 was awarded jointly to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an...

The pioneering work of Clarke, Devoret, and Martinis showed that very cold electrical circuits behave in ways that exhibit fundamental principles of quantum physics.
www.nobelprize.org/prizes/physi...

Caltech Team Sets Record with 6,100-Qubit Array The neutral-atom platform shows promise for scaling up quantum computers.

6,100 neutral-atom qubits trapped in a grid by lasers @caltech.edu ... is a lot.

www.caltech.edu/about/news/c...

John Preskill receives 2025 Quantum Leadership Award The 2025 Quantum Leadership Awards were announced at the Quantum World Congress on 18 September 2025. Upon receiving the Academic Pioneer of the Year Award, John Preskill made these remarks. I’m en…

I’m deeply honored to receive the 2025 Academic Pioneer of the Year Award from the Quantum World Congress. Curiosity-driven fundamental research revealed the promise of quantum science and technology, and will be just as vital for future advances.

quantumfrontiers.com/2025/09/18/j...

The Ginsburg Center for Quantum Precision Measurement @caltech.edu now stands 4 stories high. Opens summer 2026.

Nicole’s guide to writing research statements Sunflowers are blooming, stores are trumpeting back-to-school sales, and professors are scrambling to chart out the courses they planned to develop in July. If you’re applying for an academic job t…

Useful advice from @nicoleyh11.bsky.social.

quantumfrontiers.com/2025/08/10/n...

The QEC25 conference hosted by @yaleqi.bsky.social was really excellent, and videos of all talks are available. So much recent progress on quantum error correction!
qec25.yalepages.org

End-to-End Efficient Quantum Thermal and Ground State Preparation Made Simple We propose new quantum algorithms for thermal and ground state preparation based on system-bath interactions. These algorithms require only forward evolution under a system-bath Hamiltonian in which t...

We’re excited to propose and validate simple methods for preparing ground states and thermal states of many-particle quantum systems, which might be feasible for early fault-tolerant quantum devices. All the credit goes to my brilliant collaborators Zhiyan, Yongtao, and Lin

arxiv.org/abs/2508.05703

The vast world of quantum advantage The quest to identify quantum advantages lies at the heart of quantum technology. While quantum devices promise extraordinary capabilities, from exponential computational speedups to unprecedented mea...

The infectious enthusiasm of my wonderful co-authors (Robert Huang, Soonwon Choi, Jarrod McClean) drove this upbeat assessment of “The Vast World of Quantum Advantage.”

arxiv.org/abs/2508.05720

YouTube video by World Science Festival The Quantum Frontier with Brian Greene and John Preskill

Talking quantum with Brian.
www.youtube.com/watch?v=EKfs...

How Can Math Protect Our Data? | Quanta Magazine Mary Wootters discusses how error-correcting codes work, and how they are essential for reliable communication and storage.

In our world of (noisy) data, error correction is everywhere, as Mary Wootters eloquently explains.
www.quantamagazine.org/how-can-math...

AI Comes Up with Bizarre Physics Experiments. But They Work. | Quanta Magazine Artificial intelligence software is designing novel experimental protocols that improve upon the work of human physicists, although the humans are still “doing a lot of baby-sitting.”

AI can improve the design of experiments. “It takes a lot to think this far outside of the accepted solution,” Adhikari said. “We really needed the AI.”

www.quantamagazine.org/ai-comes-up-...

The New Quantum Era - innovation in quantum computing, science and technology | Neutral Atom Qubits with Mark Saffman In this episode of The New Quantum Era, host Sebastian Hassinger sits down with Dr. Mark Saffman, a leading expert in atomic physics and quantum information science. As a professor at the Universit...

Mark Saffman reviews the remarkable recent progress on quantum computing with neutral atoms.

podcast.newquantumera.com/57

YouTube video by National Science Foundation News Advances in Quantum Computing | Podcast

Chris Monroe recalls how fundamental research on atomic clocks led to quantum computing technologies.

www.youtube.com/watch?v=3B7z...

Little ray of sunshine A common saying goes, you should never meet your heroes, because they’ll disappoint you. But you shouldn’t trust every common saying; some heroes impress you more, the better you know them. Ray Laf…

A touching tribute to an inspiring teacher from a grateful former student.

quantumfrontiers.com/2025/07/27/l...

New PMA Chair Announced Physicist Hirosi Ooguri will become the next chair of the Division of Physics, Mathematics and Astronomy.

Hirosi Ooguri takes the reins of the PMA Division @caltech.edu. Fiona Harrison was a great Chair, and I'm sure Hirosi will be a worthy successor.
www.caltech.edu/about/news/n...

Great dinner conversation with SURF students @caltech.edu⁩! (SURF = Summer Undergraduate Research Fellowship).

Senate spending panel would rescue NSF and NASA science funding Its support for a flat budget is a sign of congressional resistance to drastic cuts Trump has proposed

Encouraging.

www.science.org/content/arti...

YouTube video by Curt Jaimungal Brand New Result Proving Penrose & Tao's Uncomputability in Physics!

Mathematician @evamirandag.bsky.social expounds on undecidability in fluid mechanics. This is fun: It's about rubber duckies drifting in the ocean.
www.youtube.com/watch?v=cgNp...