21 nov 2022
16:45 - 17:45
Amphithéâtre Maurice Halbwachs, Site Marcelin Berthelot
En libre accès, dans la limite des places disponibles


Alexandre Solon, Sorbonne Université, LPTMC, CNRS
URL de la vidéo

Active (often biological) matter can exhibit a broad range of complex collective behaviors. However, at the level of our theoretical descriptions, many of them can be understood as phase separations. I will discuss two prominent examples: motility-induced phase separation and the transition to collective motion. In both cases, the simplest theoretical descriptions show a rather conventional phase separation while refined theories lead to novel behaviors and highlight the importance of fluctuations.