About Me

I am currently a researcher at Fireworks.ai, working on novel ways to improving the quality and speed of open-weights LLMs.

Previously I was a Post-doctoral Fellow at Stanford with Prof. Risa Wechsler, where I combined trillion-particle simulations, bayesian inference, and generative ML models to probe the physics of galaxy-dark matter connection and to constrain fundamental models of the Universe. At Stanford, I also developed cutting-edge DL/GenAI techniques to science, including LLM-based idea generation, physics foundation models, and simulation-based inference. I was also a member of the Dark Energy Spectroscopic Instrument (DESI) collaboration, where I led the simulation working group for two terms. We recently released our Year 1 results. It caused a bit of a splash ;) (Article)

I completed my PhD in Astrophysics with Prof. Daniel Eisenstein at Harvard in 2021. Before that, I got my Bachelors degree in Astrophysics at Princeton.

I am an experienced public speaker. Here is my public lecture on dark energy. (Video)

Outside of research, you can find me on the tennis court, at a concert, or out on the beach ;)

My Chinese name is 袁思涵, listen here for the correct pronunciation: Google Pronounce . But you can also just call me Sandy.