Senior Research Scientist in numerical stat mech and optics at NYU | Scicomm enthusiast and Lutetium Project co-founder | Previously Postdoc at Technion, PhD student at Sorbonne U, youngling at ENS and ESPCI.
M. Kasiulis
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This was a blast from the past since the early version of the dynamical action part was derived during COVID, then dropped as I really needed some fresh (and ventilated) air. Shoutout @satyamanand.bsky.social for giving me the motivation to actually make this work public during our recent collab!
A cool collaboration with István Kovács's group at Northwestern, that brings ideas from conformal field theory and quantum spin chains all the way to active matter!
Poke @nyuphysics.bsky.social
This has concrete consequences: the response of the system violates the standard Onsager reciprocity, replaced by Onsager-Casimir like in charged particles in magnetic fields. Also, if you just look at the system naïvely with the usual time-reversal operation, it looks like it's non-equilibrium!
Today on arxiv, a blast from the past: Hamiltonian flocks! Some years ago we showed that this conservative model could support collective motion. In this preprint, I discuss how to properly couple the model to a bath and the effects of time-reversal symmetry in it! arxiv.org/abs/2604.02914
New preprint!
So, say you're studying some critical transition. How do you catch its universality? Pair correlations? Boring!
We threw line segments at the system, looked at intersections with clusters, and uncovered static and dynamical universal behavior of MIPS!
arxiv.org/abs/2511.09444
