A structural change involving more than ten thousand atoms turned out to be governed by just two collective motions.
Moiré Phonon Condensation in Magic-Angle Twisted Bilayer Graphene
Keep a light on for curiosity.
I work between physics and AI, trying to understand a little more of the world — and to keep a light on for others who want to know too.
麦吉尔大学物理博士生 · 电子结构、量子输运、科学计算
研究工作与论文:Research ↗
Physics PhD candidate at McGill University · electronic structure, quantum transport and scientific computing
Research & publications ↗
The first flame
In my grandmother's house, a rush-wick oil lamp always burned before the family altar — a shallow brass dish, a little cooking oil, a flame the size of a soybean, yet it almost never went out. Over the years the oil turned to grease and the grease to a waxy crust on the dish, with a faint smell like a candle. I would sit beside it — trimming the wick, watching the flame swell and shrink, burning small things: a stick of incense, a scrap of paper, a strand of hair, an ant I had caught. Back then the play had no purpose; it was only curiosity. Other motives are mixed in now, but the heart of it hasn't changed. CS, AI, physics — underneath them all is still the same simple wish to understand the world.
Essays
Thinking out loud, in progress — on discovery, building, AI and science, and the way there.
我为什么还在做 AI4SWhy I'm Still Doing AI4S
当人的理解成了整件事里最慢的一环,人继续参与研究,还真的有价值吗?一篇关于我为什么还在做 AI4S 的长自述——从无头苍蝇般的本科,到量子输运、DeePTB 与 McGill。When the speed of human understanding becomes the slowest link in the whole chain, is there still any value in a person staying in the loop? A long...
二十八The Twenty-Eighth
腊月二十八要回老家祭祖:方桌、供饭、烧香磕头。那桌摆得一丝不苟的斋饭,青花瓷上顶着滚圆的白饭团,竟像一幅静物画——生活琐事加上一点刻意,就升格成了某种超日常的东西。On the twenty-eighth of the last lunar month we go back to the old house to honor the ancestors: the square table, the offered food, the incense an...
隔壁的琴声The Piano Next Door
这幽幽的琴声我断定是隔壁人家的。半个月来它几乎每天飘来,轻得常听不出曲子,像老朋友一样混进背景,直到我开始怀疑:什么是可信的,什么又不是?This faint piano, I'm certain, comes from next door. For half a month it has drifted over almost daily, so soft I often can't make out the tune — a...
Things I've found
Finished research and discoveries.
A structural change involving more than ten thousand atoms turned out to be governed by just two collective motions.
Moiré Phonon Condensation in Magic-Angle Twisted Bilayer Graphene
A neural network can read only a material’s local structure and predict its quantum operators directly — reaching near first-principles accuracy while staying local enough to scale toward whole devices.
Learning local equivariant representations for quantum operators (SLEM)
Neural quantum states can act as the impurity solver inside quantum embedding, matching exact diagonalization on correlated models — where the real bottleneck is how precisely you sample observables, not training the network.
Neural-Quantum-States Impurity Solver for Quantum Embedding Problems
Trained only on first-principles eigenvalues, a deep-learning tight-binding model predicts the electronic structure of structures it has never seen — making million-atom, finite-temperature electronic simulations feasible.
Deep learning tight-binding approach for large-scale electronic simulations (DeePTB)
Making the non-equilibrium Green’s function method differentiable end to end turns a quantum transport simulator into something you can optimize through — providing gradients for sensitivity analysis and inverse design.
Automatic differentiable nonequilibrium Green's function formalism (AD-NEGF)
What I'm building
Building tools that help people understand the world.
A deep-learning tight-binding framework that predicts electronic structure at close to first-principles accuracy, for a fraction of the cost — built for researchers who need large-scale quantum simulations without a supercomputer’s budget.
github.com/deepmodeling/DeePTB ↗Infrastructure for representing and computing with very large sparse operators in electronic-structure and quantum-transport work — the quiet plumbing that lets bigger simulations run on smaller machines.
github.com/DeepElectron/vbcsr ↗ 关于 VBCSRAbout VBCSR ↗Keeping the steps, logs and results of agent-run scientific calculations together, so a finished result can be checked and rerun.
github.com/floatingCatty/flower ↗ 关于 flowerAbout flower ↗And a few things still forming — AI-native DFT, scientific agents, and the beginnings of new project around.

About
I trained early in computer science and electronic engineering, then followed a stubborn question — what is the physical world behind all this technology? — into materials, quantum transport, and computational physics. Today I work where physics, machine learning, and scientific computing meet. Lately I’ve been trying to make AI agents that don’t just organize references or write code, but genuinely take part: proposing hypotheses, designing calculations, finding hidden structure. Whether it becomes research, software, or something I build, the question stays the same — can we make better scientific tools, so that individuals and small teams can understand complex things, test their ideas, and create.
I’m always glad to talk about scientific tools, AI for discovery, and ambitious problems worth building around.