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@kenbrownquantum.bsky.social

176 Posts752 Follower240 Folgt
Ben Brown@benbrown.bsky.social · 3w ago

I am very happy to see our work on non-Clifford gates with 2D non-Abelian topological phases published in PRX journals.aps.org/prx/abstract.... This is definitely among the most exciting projects I have worked on.

Universal Fault-Tolerant Quantum Computation in 2D without Getting Tied in Knots

Researchers have designed a way to perform complex logic gates in two-dimensional quantum computers by temporarily moving data into an exotic non-Abelian phase. This method provides a path toward larg...

journals.aps.org

@kenbrownquantum.bsky.social · 2mo ago

Alas, I am missing QEC26 but if I was there I would be telling everyone about our new paper about experimentally determined DEMs. arxiv.org/abs/2606.11496 . Eva Takou led a team with USC and CSIC to test experimental DEMs on Google and IBM devices.

Logical error estimation from syndrome data of surface-code experiments

Decoders for quantum error correction (QEC) experiments rely on detector error models (DEMs), which encode, for each error, its probability and the detectors and logical observables it flips. Here we ...

arxiv.org

Error Correction Zoo@eczoo.bsky.social · 2mo ago

Big update: the EC Zoo is now a handbook. It spans codes, sphere packings, lattices, designs, groups, and phases of matter. Extensively checked, but not perfect—feedback very welcome: arxiv.org/abs/2606.11484

Handbook of Error-Correcting Codes

Barcode scans, clear phone calls, reliable data storage, satellite communication, and large-scale quantum computation are all made possible by error correction. We present a handbook version of The Er...

arxiv.org

Kartik@k4rtik.bsky.social · 3mo ago

Lightning talk submissions are open for the Quantum Software 2.6 workshop at IEEE Quantum Week in Toronto. Working on quantum software? We'd love to hear from you. Workshop: sites.google.com/view/quantum... Submit: forms.gle/fnSPSmERLSPq...

Quantum Software 2.6 Workshop

Quantum Software 2.6: current challenges and headways in quantum software IEEE Quantum Week 2026 conference, Sept 13th - Sept 18th Metro Toronto Convention Center Toronto, Ontario, Canada

sites.google.com

Sunny He@sunnyhe.bsky.social · 3mo ago

Extractors: smaller than the code, enable full logical processing, same error rate as memory, compatible with fixed connectivity. As promised, they turn quantum memories into quantum processors. arxiv.org/abs/2606.03507 Joint work with the wonderful John Blue, Harry Zhou, and Ike Chuang.

Full Extractors for Logical Processing in Hypergraph Product Codes

Quantum low-density parity-check (QLDPC) codes are promising candidates for practical low-overhead quantum memories. For large-scale fault-tolerant quantum computation, we further need logical process...

arxiv.org

Dom Williamson@domwilliamson.bsky.social · 3mo ago

Excited to share our new work led by fantastic undergraduate research student Cassie Hopkin. We show that many translation invariant qLDPC codes can be viewed as compactifications of a single parent fracton code that is local in a higher dimension. arxiv.org/abs/2605.19298 @vva.bsky.social

Translation-invariant quantum low-density parity-check codes from compactified fracton models

Quantum error-correcting codes with translation symmetry and local checks have been studied extensively, leading to a wide variety of fracton codes in three or more dimensions which lack a complete un...

arxiv.org

@kenbrownquantum.bsky.social · 4mo ago

I gave a talk about our quantum error correction tools at the Monte Verita Quantum Codes conference. It has been a great conference so far including experiment and theory for both CV and DV codes.

Kenneth Brown talking about quantum error correction tools developed in the Brown Lab at the Monte Verita Quantum Codes conference
Abhinav Anand@abhinav-anand.bsky.social · 4mo ago

We just posted a new paper: “Architecting Early Fault Tolerant Neutral Atoms Systems with Quantum Advantage” arxiv.org/abs/2604.19735 🚀🎉 Our goal was to identify fault-tolerant (FT) architectures for neutral atom platforms that can enable quantum advantage experiments in the near future.

Architecting Early Fault Tolerant Neutral Atoms Systems with Quantum Advantage

Recent advancements in neutral atom platforms have enabled exploration of early fault-tolerant (FT) architectures for applications with quantum advantage, such as quantum dynamics simulations. An effi...

arxiv.org

Craig Gidney@craiggidney.bsky.social · 4mo ago

Congrats to Keegan Ryan for being the first to exploit the simulator we used to validate the secret quantum circuits: blog.trailofbits.com/2026/04/17/w... It kills me that the (now fixed) bugs were simple (we didn't port the op validation code from C++ to Rust!), but that's to be expected.

We beat Google’s zero-knowledge proof of quantum cryptanalysis

Trail of Bits discovered and exploited memory safety and logic vulnerabilities in Google’s Rust zero-knowledge proof code to forge a proof claiming better quantum circuit performance metrics than Goog...

blog.trailofbits.com

Henry Yuen@henryyuen.bsky.social · 4mo ago

In this MURI project with Sebastian Will (Columbia), Yongshan Ding (Yale), Shruti Puri (Yale), and Daniel Grier (UCSD), we will explore the potential uses and benefits (and limitations!) of using quantum gates that can act on many qubits at a time.

The Data Science Institute at Columbia University@datascicolumbia.bsky.social · 4mo ago

Led by DSI member @henryyuen.bsky.social, a new multi-university grant from the Air Force Office of Scientific Research (AFOSR) will examine whether larger quantum operations could reduce errors and make future quantum computers more practical. More: datascience.columbia.edu/news/2026/tr...

Dan Garisto@dangaristo.bsky.social · 5mo ago

The APS Meeting in Denver starts in earnest tomorrow and as sort of an experiment to see if this still works, I've resolved to actually cover the conference on social media (like we did in days of yore), so bear with me for what will be a couple days of posting about physics.