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New work on "Symmetric Channel Verification," a general framework lifting (virtual) error detection and correction to channel level. Prominently, it breaks barrier of existing QEM; symmetry-breaking noise under arbitrary input states. Congrats Kento! arxiv.org/abs/2503.13114

Nature prepares ground states of quantum systems by cooling them down. Can we harness the power of cooling to prepare ground states on quantum computers? ❄️❄️ Yes! We show that many quantum systems, including spin and fermionic systems, can be rapidly (in O(log N) time!) cooled

Won APS ducks 🦆 at #apssummit2025 #apsmarch , with Su-un Lee and Kento Tsubouchi

I’m pleased to share that our partners at Université de Sherbrooke (UdeS) are launching two IBM Quantum Research Chair positions at the Institut quantique. Cunlu Zhou research.ibm.com/blog/udes-quan…

1/n I'm excited to share our latest work, Demonstration of robust and efficient quantum property learning with shallow shadows, published in Nature Communications! 🎉 📝 Authors: Hong-Ye Hu, Andi Gu, Swarnadeep Majumder, Hang Ren, Yipei Zhang, Derek S. Wang, Yi-Zhuang You,

On the same day that the South Korean president is forced to QUIT his job🥳, we are presenting QUITS, a democratic (open-source) modular Qldpc code circUIT Simulator. It should be useful for research on the circuit-level performance of QLDPC codes! github.com/mkangquantum/q…

Paper out! Contrary to the common understanding, we prove that randomness generation is barely hurt by the choice of randomizers, covering brickwork circuit in lattices to patchwork circuits. Congrats Toshihiro for the thorough work! arxiv.org/abs/2504.07390

Do abstract learning processes have tangible physical consequences? Yes! In this work, we rigorously show that the (in)ability to learn dramatically impacts the amount of physical resources required to perform certain thermodynamic tasks. arxiv.org/abs/2504.07341

I defended my PhD dissertation today!! 🍾🎓⚛️ Thank you to everyone who supported me along this wonderful journey.

Are random circuits useful in anything other than sampling? With Henry Yuen and others, we suggest the answer is yes. We lay out NISQ-friendly quantum cryptographic schemes with random circuits. 😃 UChicagoCS Columbia University University of Illinois scirate.com/arxiv/2504.153… 1/5 📜

I'm hiring a postdoc! If you'd like to work with me on quantum learning, error correction, quantum algorithms, and FTQC at Virginia Tech in the Washington, DC metro area, please apply here: careers.pageuppeople.com/968/cw/en-us/j…

*How much advantage can entangled quantum sensors give over unentangled sensors?* Conventionally entanglement is thought to give, at best, a quadratic advantage in quantum sensing: Heisenberg (1/N) vs Standard-Quantum-Limit (1/Sqrt(N)) scaling. 1/

A new theorem shows that no universal entanglement purification protocol exists for all two-qubit entangled states if one is limited to just standard local operations and classical communication go.aps.org/4iYB33D

Great to see momentum building around quantum LDPC codes. This [[18,4,4]] demo on Kunlun is a solid proof of principle—but still a gadget in my view. Offline BP-OSD, air bridges, small code. Not scalable, but a step. More on our scalable approach coming soon.

A new #quantum logic gate enables a family of high-rate quantum low-density-parity-check, or qLDPC, codes to measure logical #qubits selectively and in parallel, opening avenues for spacetime-efficient, fault-tolerant quantum computation. Read the paper: go.aps.org/4kvwsaa

.Xanadu has achieved a major breakthrough, creating the world’s first photonic GKP qubit on an integrated chip. Published today in nature this is more than just a milestone; it’s a step toward scalable, fault-tolerant quantum computing. nature.com/articles/s4158… 🧵1/3