title: Universality of jamming criticality in overdamped shear-driven frictionless disks.
abstract: We investigate the criticality of the jamming transition for overdamped shear-driven frictionless disks in two dimensions for two different models of energy dissipation: (i) Durian's bubble model with dissipation proportional to the velocity difference of particles in contact, and (ii) Durian's "mean-field" approximation to (i), with dissipation due to the velocity difference between the particle and the average uniform shear flow velocity. By considering the finite-size behavior of pressure, the pressure analog of viscosity, and the macroscopic friction σ/p, we argue that these two models share the same critical behavior.
authors.affiliation: Department of Physics, Umeå University, 901 87 Umeå, Sweden.
authors.forename: Daniel
authors.initials: D
authors.lastname: Vågberg
authors.affiliation: Department of Physics, Umeå University, 901 87 Umeå, Sweden.
authors.forename: Peter
authors.initials: P
authors.lastname: Olsson
authors.affiliation: Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA.
authors.forename: S
authors.initials: S
authors.lastname: Teitel
mesh_terms: D017276:Friction; D008962:Models, Theoretical