3 papers
cond-mat.stat-mech2026
Emergent nonreciprocity in open thermodynamically-consistent chemical reaction networks
Daniel Evans, Yizhi Shen, Ahmad K. Omar
Nonreciprocity, a hallmark of nonequilibrium systems, can generate dynamics not possible near thermodynamic equilibrium, including oscillatory and rotating patterns. The onset of t…
cond-mat.stat-mech2025
Critical Motility-Induced Phase Separation in Three Dimensions is Consistent with Ising Universality
Jiechao Feng, Daniel Evans, Ahmad K. Omar
Identifying the universality class of critical active phase transitions has been the subject of recent interest and controversy. Resolving these controversies will require robust n…
cond-mat.stat-mech2024
Theory of Nonequilibrium Crystallization and the Phase Diagram of Active Brownian Spheres
Daniel Evans, Ahmad K. Omar
The crystallization of hard spheres at equilibrium is perhaps the most familiar example of an entropically-driven phase transition. In recent years, it has become clear that activi…