Four former Brown lab members smiling at the camera with a ski mountain behind them.

Excited to see Swapnil Patel's paper measuring charge exchange between K and CaH+ on the arXiv arxiv.org/abs/2602.09142 . Joint work with @michaltomza.bsky.social and Dibyendu Sardar at the University of Warsaw. Here is a picture of Swapnil (orange jacket) skiing with other Brown lab alumni.

The Call for Submissions for QEC26 is now up: qec-conference.org/2026/call/
Follow the link to submit your paper or poster by March 6th AOE.

The call for submissions is now live on the QEC website! Deadline is March 6th, AoE.

Please consider submitting and we'd appreciate it if you spread the word! :)

Logical qubits encoded in the fusion space of non-Abelian anyons in a generalized surface code.

Not the most efficient way to build a quantum computer, but definitely the coolest!

Quantinuum and co show how it's done on one of their H2 devices.

arxiv.org/abs/2601.20956

The real harm of only recording the speaker is you can't tell if any of the jokes landed.

Great list from Dave. Also if you haven't visited the Museum of Jurassic Technologies you should.

I have never listened to the album as a whole. Thanks for the suggestion!

I know. Portishead Dummy is still a perfect CD.

post a perfect album from the 90s that isn't nirvana, pearl jam, etc etc

🎆As the year ends, I want to remind everyone that our summer school applications are open!

Please apply/encourage your students to apply here:

academicjobsonline.org/ajo/jobs/31108

We also have a handshake link too🤝 :

app.joinhandshake.com/emp/jobs/105...

Shares appreciated!

Top: The Internet, depicted as an octopus, helping a human lift a barbell with the caption "INTERNET makes your job easier". Bottom: Octopus helping a robot lift the same weight with the caption while pushing the human away"INTERNET gives your job to ROBOT"

INTERNET makes your job easier, INTERNET gives your job to ROBOT, by me in 2015. If I drew it today, ROBOT would be AI.

Sunrise reflected off highrises in Busan Korea.

#hotelview in Busan.

A modern professor in the traditional Korean garb of a scholar in the Joseon dynasty. In front of the backdrop of a traditional Korean palace building.

Last stop in Korea the ICAMD conference in Busan. They had a booth to dress up in Joseon dynasty dress. Here I am dressed as a scholar.

Two ion trapping professors in an ion trap lab not touching any optics.

Third stop on the Korea Tour was Seoul National University. I met with Prof. Taehyun Kim and his group. Here we are in the Yb+ lab.

Three professors and Dr. Quantum, a large cartoon character, by an example of the inside of a cryogenic chamber at SKKU

Next stop on the Korea tour was Sungkyunkwan University. I met with Profs. Yonuk Chong, Junki Kim, Dongmoon Min, and Seok-hyung Lee. Here I am with Prof. Chog, Prof. Kim and Dr. Quantum.

Picture from a hotel.window showing the side of the building with an open air staircase and a narrow row of windows.

Here is the Seoul hotel view 1. #hotelview

Two professors in winter coats at the bottom of a deep staircase between two buildings that rise up like canyon walls.

Chalkboard in the physics department at Ewha Womans University with a cat in a box on it and an external observer. Physicists love chalkboards and drawing Schrödinger's thought experiment.

First stop on Korea trip last week: Ewha University and the labs of Prof. Taeyoung Choi.

View from a hotel window of a parking lot, trees with a few last colorful leaves, and a cloudy sky. The clouds are almost a lattice of small clouds with blue sky peaking through.

I arranged travel late for my visit and found myself with this #hotelview.

Great visit to Tufts a few weeks ago. They have an open-rank job in Quantum Information / Computing theory. Open Positions | Department of Physics and Astronomy share.google/NosuSUs77OZU...

Please give it a try and consider adding your favorite decoder.

Hanwen Yao and Mert Gökduman developed tools for the classical codes and decoders and Arianna Meinking worked on decoders. Classical codes can be combined into different quantum codes: Hypergraph Product Codes, Quasicyclic Lifted Product Codes, or the Balanced Product Cyclic codes.

Mingyu Kang ( @mingyukang.bsky.social ) and Yingjia Lin co-led the project to build a tool that takes as input the parameters of classical codes and a quantum decoding strategy and outputs quantum codes and circuit-level logical performance.

QUITS: A modular Qldpc code circUIT Simulator Mingyu Kang, Yingjia Lin, Hanwen Yao, Mert Gökduman, Arianna Meinking, and Kenneth R. Brown, Quantum 9, 1931 (2025). To achieve quantum fault tolerance with lower overhead, quantum low-density parity-...

QUITS now out in Quantum
quantum-journal.org/papers/q-202...

Hi, #quantum researchers and authors! Some friendly, informal, totally non-binding advice from your Editor in Chief at IEEE Transactions on Quantum Engineering (TQE).
#QuantumComputing #QuantumInternet
1/about a hundred

My library is also at its limit. I try to give away almost everything. I am still a paper book guy.

Nice collection @rdvquantum.bsky.social I really like "Coming of the Light" in Broken Stars.

Dynamic local single-shot checks for toric codes Quantum error correction typically requires repeated syndrome extraction due to measurement noise, which results in substantial time overhead in fault-tolerant computation. Single-shot error correctio...

🚀 We just posted a new paper on arXiv!
“Dynamic local single-shot checks for the toric code”
arxiv.org/abs/2511.20576

Yes. Nature abhors computation.

5) I am glad that particle physicists are adopting quantum information ideas

3b) or look up the Mermin-Peres Magic Square (a different type of magic related to squares with numbers that have certain properties under row and column addition)

4) Entanglement is common in nature. It happens when systems interact.