I'm looking forward to the Kavli Symposium tomorrow at the APS Global Physics Summit, where I'll speak about "The Road to Quantum Advantage." summit.aps.org/events/MAR-X02

I'm thrilled that Charlie Bennett and Gilles Brassard have received the A. M. Turing Award for “their essential role in establishing the foundations of quantum information science and transforming secure communication and computing.” Congratulations! www.quantamagazine.org/quantum-cryp...

Garnet Chan reflects on recent progress using classical heuristics in computational quantum chemistry—and what it means for quantum computing. The lessons he draws can help to steer both classical and quantum approaches in scientifically productive directions. quantumfrontiers.com/2026/03/12/t...

Today was the last meeting of our first-year seminar @caltech.edu: "Quantum information science today and tomorrow." I'm grateful to (from left to right) Andy, Jin, Fan, Ostap, Justin, Idil, Lily, Ella, and Ronald for their sparkling enthusiasm and many perceptive insights.

With characteristic attention to detail, @nicoleyh11.bsky.social offers guidance on handling faculty offers. quantumfrontiers.com/2026/03/11/n...

In the last post of a 3-part series, Dominik Hangleiter highlights the importance of efficient verification of quantum advantage, and assesses the prospects for achieving it soon. quantumfrontiers.com/2026/02/28/w...

It's nice to find out that I'm still an influencer in particle theory: "We thank John Preskill for suggesting the phrase “One Sum To Rule Them All,” which inspired the title of this paper." arxiv.org/abs/2602.22320

Interesting format for a review article. 24 brief chapters, each offering perspective from a small subset of the 69 authors on a particular topic. quantumfrontiers.com/2026/02/11/q...

An engaging account of the remarkably rich scientific legacy of physicist Luis Alvarez. www.nybooks.com/articles/202...

Siblings: Three of my scientific "children" (Dariel Mok, Hui Khoon Ng, Hoi-Kwong Lo) gather in Singapore. I've been blessed with many wonderful students.

While attending the Q2B Silicon Valley conference in December, I had this enjoyable conversation with Antonella Navarro, host of The Quantum Revolution podcast. www.youtube.com/watch?v=_Zas...

In part 2 or a 3-part series, Dominik Hangleiter continues his thoughtful assessment of the evidence for quantum advantage in random-circuit-sampling experiments. quantumfrontiers.com/2026/01/25/h...

Here's the video of my talk on December 10 at Q2B Silicon Valley, reviewing recent progress in quantum computing. www.youtube.com/watch?v=_UoJ...

Encouraging news. www.nytimes.com/2026/01/10/s...

Dominik Hangleiter weighs in with an informative post about a much debated question: Has quantum advantage been achieved? This is the first post in a three-part series. quantumfrontiers.com/2026/01/06/h...

Ken Goldberg and I talked to The Quantum Kid about quantum computing and robots. www.youtube.com/watch?v=hkb-...

It's fun to describe quantum teleportation in terms of particles that move both forward and backward in time. And it's more than just fun: the intuition derived from that description can guide us to new applications. quantumfrontiers.com/2025/12/14/m...

Every December since 2017, I've delivered a keynote at Q2B Silicon Valley, commenting on recent progress in quantum computing. Here is what I said this time. It's been a good year for quantum. quantumfrontiers.com/2025/12/26/q...

In predicting properties of electronic structure or deciphering signals produced by Nature, will classical artificial intelligence eat quantum's lunch? Here @robbieking1000.bsky.social considers the issue from the perspective of complexity theory. quantumfrontiers.com/2025/12/11/c...

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...

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

"... 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!

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

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...

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...

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...

6,100 neutral-atom qubits trapped in a grid by lasers @caltech.edu ... is a lot. www.caltech.edu/about/news/c...

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.

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

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 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

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

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

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-...

Mark Saffman reviews the remarkable recent progress on quantum computing with neutral atoms. podcast.newquantumera.com/57

Chris Monroe recalls how fundamental research on atomic clocks led to quantum computing technologies. www.youtube.com/watch?v=3B7z...

A touching tribute to an inspiring teacher from a grateful former student. quantumfrontiers.com/2025/07/27/l...

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).

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

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...

Andrew Houck, Director of the Co-Design Center for Quantum Advantage, makes an eloquent case for the value of the National Quantum Initiative Quantum Research Centers. Hey Congress, how's that reauthorization coming along?

Raymond Laflamme 1960-2025. A great scientist, renowned for his pioneering contributions to quantum error correction. A great leader, founding director of the Institute for Quantum Computing. A great colleague and teacher whose legacy continues to inspire us. uwaterloo.ca/institute-fo...

Yiyi Cai has done research in our group @caltech.edu for two years, including a senior thesis. She'll be a Gates Cambridge Scholar for a year, followed by PhD studies in computer science at Stanford. Congratulations, Yiyi, you'll be missed!

The building committee gets a first look at the basement of the Ginsburg Center for Quantum Precision Measurement at Caltech. We're standing where a tunnel will connect Ginsburg labs to labs in neighboring Downs Laboratory. With me are Nick Hutzler, Rana Adhikari, Michelle Effros, and Dave Hsieh.

After a long hiatus, we are finally getting around to posting our coolest undertaking during the conference--interviews with some of the biggest names in our field about the early days of QIP! First in our lineup is our interview with the one and only John Preskill (@preskill.bsky.social)! (1/4)