The collective behavior of dense active matter is a subject of intense research activity. Jamming and motility-induced phase transition (MIPS) in models of spherical active particles have been thoroughly investigated. An idea tat has emerged is that activity induces an effective attraction between the particles leading to phenomena such as MIPS. Extreme active matter is the limit in which the rotation rate of the persistent direction of the active particles approaches zero. In this limit, a question that arises is whether a scenario of “driven” jamming, similar to shear-jamming can occur. In this talk, I will discuss the appearance of dynamical arrest, similar to gelation in a model of lattice-bound active particles that exhibit glassy dynamics in the passive limit. The results support the general idea that activity can be thought of as an effective attraction between particles.
Bulbul Chakraborty (Brandeis University, USA)
Date & Time
Wed, 14 August 2019, 11:00 to 12:00
Chern Lecture Hall, ICTS Campus, Bangalore