About

Brandon Fasy

I'm a PhD student in Physics studying Active Brownian Particles — self-propelled microscopic agents that consume energy to move, cluster, and collectively misbehave in ways that still feel miraculous to me. My work lives somewhere between non-equilibrium statistical mechanics and computational simulation; I spend a lot of time staring at particle clouds on a screen and arguing with LAMMPS.

Outside the lab I train and compete in MMA. I find the two pursuits rhyme more than people expect: both reward obsessive attention to detail and punish you immediately when you get something wrong.

I'm currently based in Tbilisi, Georgia, which I chose partly for the khinkali and partly because the city has a productive indifference to whatever century you think it is. I write here occasionally — about physics, fighting, books, and whatever else won't leave me alone.

This site is intentionally plain. No JavaScript frameworks were harmed.


Currently

working on
Motility-induced phase separation in confined geometries; trying to pin down the exact role of boundary curvature on cluster nucleation. Progress: slow, interesting.
reading
The Master and Margarita (Bulgakov) — finally. Also dipping into Sethna's Statistical Mechanics: Entropy, Order Parameters, and Complexity for a section I keep meaning to understand properly.
thinking about
Whether the effective temperature of an active fluid is a useful concept or a misleading one. Also the single-leg takedown finish from top half-guard.
listening to
Tbilisi techno on the walk to the institute. Georgian folk music at home.
last updated
2026-04-02

Recent Writing

All posts →


Research

My PhD research focuses on the collective behavior of Active Brownian Particles (ABPs) — a minimal model for self-propelled colloids, bacteria, and other far-from-equilibrium systems. Current projects:

Projects & code →


Contact

Email is best: brandon@example.com
I check it roughly once a day and reply within a week unless swamped.