title: Glassy dynamics of athermal self-propelled particles: Computer simulations and a nonequilibrium microscopic theory.
abstract: We combine computer simulations and analytical theory to investigate the glassy dynamics in dense assemblies of athermal particles evolving under the sole influence of self-propulsion. Our simulations reveal that when the persistence time of the self-propulsion is increased, the local structure becomes more pronounced, whereas the long-time dynamics first accelerates and then slows down. We explain these surprising findings by constructing a nonequilibrium microscopic theory that yields nontrivial predictions for the glassy dynamics. These predictions are in qualitative agreement with the simulations and reveal the importance of steady-state correlations of the local velocities to the nonequilibrium dynamics of dense self-propelled particles.
authors.affiliation: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Szamel
authors.affiliation: Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, USA.
authors.forename: Elijah
authors.initials: E
authors.lastname: Flenner
authors.affiliation: Laboratoire Charles Coulomb, UMR 5221 CNRS, Université Montpellier, Montpellier, France.
authors.forename: Ludovic
authors.initials: L
authors.lastname: Berthier