7th KIAS Conference on Statistical Physics
[Talk 23] Phase equilibria of phase-separating self-propelled particles
SPEAKER | Julien Tailleur
INSTITUTE | CNRS - Universite Paris Diderot
DATE | July 7(Thu), 2016
TIME | 09:40
PLACE | Korea Institute for Advanced Study (KIAS), Seoul, Korea
ABSTRACT | When synthetic self-propelled particles or bacteria slow down at high density, either because
of collisions or due to biochemical interactions, they may undergo a liquid-gas phase separation.
This leads to the emergence of cohesive matter without the need of cohesive forces. For the
past ten years, various theories have (unsuccessfully) been put forward to account for the
corresponding phase equilibrium. I will show how the equilibrium concepts of pressure and
chemical potential can be generalized in this non-equilibrium setting to determine the phase
equilibria of systems undergoing the so-called Motility-Induced Phase Separation.