Sun Woo Kim @sunwoopkim.bsky.social · 9hMan I looked at ONE picture of a mushroom and now my entire feed is #shroomscrolling 000
Reposted by Sun Woo KimSun Woo Kim @sunwoopkim.bsky.social · 02/10/2026Constant number of submissions to arxiv every month 011
Sun Woo Kim @sunwoopkim.bsky.social · 02/10/2026Constant number of submissions to arxiv every month 011
Reposted by Sun Woo KimDr Hannah M. Rowland @hannahmrowland.bsky.social · 01/10/2026Hope your day was better than Darwin’s, on this day 165 years ago 202100032455
Sun Woo Kim @sunwoopkim.bsky.social · 02/10/2026Really depends on what you allow for minimum hole radius 000
Sun Woo Kim @sunwoopkim.bsky.social · 02/10/2026Don't read papers, force the authors to explain them to you. 140
Sun Woo Kim @sunwoopkim.bsky.social · 02/10/2026Thank god: 2 submissions per month limit on arXiv. blog.arxiv.org/2026/10/01/u...blog.arxiv.orgFair Moderation, Equitable Access, and AI: arXiv’s Updated Rate Limit PolicyarXiv, and the scientific community at large, are facing a watershed moment. Scholarly publishing is currently changing at a rapid pace, and we are seeing a… 030
Reposted by Sun Woo KimJohn C. Baez @johncarlosbaez.bsky.social · 06/09/2026Joan Birman is amazing! www.nytimes.com/2026/09/06/s...nytimes.comThe 92-Year-Old Mathematician and the Teenage Apprentice (Gift Article)Joan Birman thought her major discoveries were behind her. Then came an email from a young neighbor — a girl who knew little but wanted to learn. 26017
Reposted by Sun Woo KimSun Woo Kim @sunwoopkim.bsky.social · 02/09/2026Interesting thought experiment: if you had noise-cancelling headphones that had 'antennas', such that you place microphones further away from your head (to get early warning of sounds), how long would the antennas have to be such that you can cancel out gunshots? 141
Sun Woo Kim @sunwoopkim.bsky.social · 02/09/2026Interesting thought experiment: if you had noise-cancelling headphones that had 'antennas', such that you place microphones further away from your head (to get early warning of sounds), how long would the antennas have to be such that you can cancel out gunshots? 141
Sun Woo Kim @sunwoopkim.bsky.social · 25/08/2026features: (a) you can add to the end of the url to specify cities, e.g. #newyork,london,paris. (b) responsive design so it should work on your phone too. (c) when you scroll the city names are persistent. (d) click on a time to highlight 000
Sun Woo Kim @sunwoopkim.bsky.social · 25/08/2026Don't you hate trying to organise a 3-way meeting between academics that live in 3 different timezones? Well, I did. Here's a tool to visualise multiple timezones + dates at the same time (vibe-coded with lots torturing of LLM to get precisely what I wanted). sunwoo-kim.github.io/tools/timesy...sunwoo-kim.github.iotimesync 162
Sun Woo Kim @sunwoopkim.bsky.social · 22/08/2026ah yes "equation two hat starred implies equation two hat" 020
Reposted by Sun Woo KimSun Woo Kim @sunwoopkim.bsky.social · 13/08/2026Happy to have this work from last year out on Nature Communications! We show that one can start from the microscopic rules of an artificial system (many-body circuits) to derive quantitatively exact hydrodynamics. (1/3) www.nature.com/articles/s41...nature.comCircuits as a simple platform for the emergence of hydrodynamics in deterministic chaotic many-body systems - Nature CommunicationsThe emergence of hydrodynamics in many-body systems is a fundamental phenomenon that has long puzzled physicists, particularly in understanding how macroscopic behavior arises from microscopic determi... 151
Sun Woo Kim @sunwoopkim.bsky.social · 13/08/2026Thanks to collaborators Friedrich Hübner, Juan Garrahan, and Benjamin Doyon. (3/3) 010
Sun Woo Kim @sunwoopkim.bsky.social · 13/08/2026We used this to show exact KPZ scaling, first time in a deterministic chaotic system with one conserved quantity! This setup gives a controlled environment to test hydrodynamical theories; we expect it to be useful in the future. (2/3) 110
Sun Woo Kim @sunwoopkim.bsky.social · 13/08/2026Happy to have this work from last year out on Nature Communications! We show that one can start from the microscopic rules of an artificial system (many-body circuits) to derive quantitatively exact hydrodynamics. (1/3) www.nature.com/articles/s41...nature.comCircuits as a simple platform for the emergence of hydrodynamics in deterministic chaotic many-body systems - Nature CommunicationsThe emergence of hydrodynamics in many-body systems is a fundamental phenomenon that has long puzzled physicists, particularly in understanding how macroscopic behavior arises from microscopic determi... 151
Sun Woo Kim @sunwoopkim.bsky.social · 04/08/2026Yeah, I've hardly seen any posts on new papers these days, and those posts also don't seem to get any engagement... 250
Reposted by Sun Woo Kimdepths of wikipedia @depthsofwikipedia.bsky.social · 02/08/2026she's so real for that 978563
Reposted by Sun Woo KimSun Woo Kim @sunwoopkim.bsky.social · 27/07/2026Famously, quantum error-correction on the toric code under bit-flip errors maps to the random-bond Ising model. But what about general noise (e.g. amplitude damping) and non-abelian codes (e.g. string-net)? scirate.com/arxiv/2607.2... (1/2)scirate.com 1102
Sun Woo Kim @sunwoopkim.bsky.social · 27/07/2026With Max McGinley, we came up with a very general and mathematically rigorous technique to bound recovery thresholds and diagonose mixed-state topological order. Excited to have it out, let us know what you think! (2/2) 010
Sun Woo Kim @sunwoopkim.bsky.social · 27/07/2026Famously, quantum error-correction on the toric code under bit-flip errors maps to the random-bond Ising model. But what about general noise (e.g. amplitude damping) and non-abelian codes (e.g. string-net)? scirate.com/arxiv/2607.2... (1/2)scirate.com 1102
Sun Woo Kim @sunwoopkim.bsky.social · 21/07/2026I'm starting as a student researcher at Google Quantum AI in Goleta, California for a year. Please reach out if you're in Goleta or the Santa Barbara area! 041
Sun Woo Kim @sunwoopkim.bsky.social · 21/07/2026In Go in Korea nowadays all the top pros try to learn moves from models. I saw a video that measured how similar a player's moves are to that of the top model. The most highly rated player had moves most similar to the model. He also beat the top model recently, albeit starting with 2 points ahead. 110
Sun Woo Kim @sunwoopkim.bsky.social · 22/06/2026Maybe best to send them an email letting them know so they have a chance to edit it.. 030
Sun Woo Kim @sunwoopkim.bsky.social · 22/06/2026Under new arXiv regulations this is a straight one-year ban followed by being unable to post a preprint before accepted into a journal for life, for every author on the paper, right? 160
Sun Woo Kim @sunwoopkim.bsky.social · 19/06/2026Cool! A question: how do you get around the Bravyi-Terhal-Poulin bounds? 110
Reposted by Sun Woo KimSun Woo Kim @sunwoopkim.bsky.social · 12/06/2026'Solvable' circuits, such as dual-unitaries, have gained attention recently as a paradigm of tractable many-body dynamics. With Friedrich Hübner, we came up with necessary and sufficient conditions for any (1+1)D circuit to be 'influence-solvable'. Happy to hear thoughts! arxiv.org/abs/2606.12538arxiv.orgInfluence-solvability: a systematic theory of $(1+1)D$ solvability and its application to brickwork circuits`Solvable' circuits, such as dual unitaries and its generalisations, have arisen as paradigmatic examples of tractable chaotic non-equilibrium dynamics, both in classical and quantum systems. However,... 062
Sun Woo Kim @sunwoopkim.bsky.social · 12/06/2026'Solvable' circuits, such as dual-unitaries, have gained attention recently as a paradigm of tractable many-body dynamics. With Friedrich Hübner, we came up with necessary and sufficient conditions for any (1+1)D circuit to be 'influence-solvable'. Happy to hear thoughts! arxiv.org/abs/2606.12538arxiv.orgInfluence-solvability: a systematic theory of $(1+1)D$ solvability and its application to brickwork circuits`Solvable' circuits, such as dual unitaries and its generalisations, have arisen as paradigmatic examples of tractable chaotic non-equilibrium dynamics, both in classical and quantum systems. However,... 062
Reposted by Sun Woo KimMark Riedl @markriedl.bsky.social · 14/05/2026ArXiV has a new LLM policy (Screenshots with alt text so you don’t have to click through to the other place and see all the stupid responses) 8312105
Sun Woo Kim @sunwoopkim.bsky.social · 15/05/2026My upcoming paper has 200+ hand-drawn diagrams... It's living hell. 010
Sun Woo Kim @sunwoopkim.bsky.social · 12/05/2026Ah. But this feels like cheating. I guess overfull hboxes should not be warnings in the first place though 100
Sun Woo Kim @sunwoopkim.bsky.social · 12/05/2026damn this never happened to me, I always at least an overflowing \hbox... 110
Sun Woo Kim @sunwoopkim.bsky.social · 11/05/2026Happy to finally have this work from a year ago with Curt von Keyserlingk and @austen.uk published on PRR! In this work, we linked and generalised error correction / inference / learnability problems to quantum and non-optimal regimes, and studied their phases. journals.aps.org/prresearch/a... 050
Sun Woo Kim @sunwoopkim.bsky.social · 08/05/2026self-organisation on a graph with no spatial structures 000
Sun Woo Kim @sunwoopkim.bsky.social · 02/05/2026Yes, but my point is that a lot of SFT is rigorous (Fokker-Planck) 000
Sun Woo Kim @sunwoopkim.bsky.social · 02/05/2026Isn't analytic continuation / Wick rotation non-rigorous? 100
Sun Woo Kim @sunwoopkim.bsky.social · 02/05/2026Yeah I know, of course you can do Wick rotation, etc., but that's non-rigorous right. For SFT I think you can often do it rigorously with Feynmann-Kac and Fokker-Planck, I think. 100
Sun Woo Kim @sunwoopkim.bsky.social · 02/05/2026Howtown doesn't get enough love. I enjoyed the latest episode, especially the bit about rats on cocaine enjoying jazz: youtu.be/0ZYhyewNQMo&...youtu.beWhat do other animals think of human music?YouTube video by Howtown 000