%0 Journal Article
%T How active forces influence nonequilibrium glass transitions
%+ Laboratoire Charles Coulomb (L2C)
%+ Colorado State University [Fort Collins] (CSU)
%A Berthier, Ludovic
%A Flenner, Elijah
%A Szamel, Grzegorz
%Z . Réf Journal: New J. Phys. 19, 125006 (2017)
%< avec comité de lecture
%Z L2C:17-182
%@ 1367-2630
%J New Journal of Physics
%I Institute of Physics: Open Access Journals
%V 19
%P 125006
%8 2017
%D 2017
%Z 1708.04259
%R 10.1088/1367-2630/aa914e
%Z Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
%Z Physics [physics]/Condensed Matter [cond-mat]/Statistical Mechanics [cond-mat.stat-mech]Journal articles
%X Dense assemblies of self-propelled particles undergo a nonequilibrium form of glassy dynamics. Physical intuition suggests that increasing departure from equilibrium due to active forces fluidifies a glassy system. We falsify this belief by devising a model of self-propelled particles where increasing departure from equilibrium can both enhance or depress glassy dynamics, depending on the chosen state point. We analyze a number of static and dynamic observables and suggest that the location of the nonequilibrium glass transition is primarily controlled by the evolution of two-point static density correlations due to active forces. The dependence of the density correlations on the active forces varies non-trivially with the details of the system, and is difficult to predict theoretically. Our results emphasize the need to develop an accurate liquid state theory for nonequilibrium systems.
%G English
%2 https://hal.science/hal-01667079/document
%2 https://hal.science/hal-01667079/file/1708.04259.pdf
%L hal-01667079
%U https://hal.science/hal-01667079
%~ CNRS
%~ L2C
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UM-2015-2021