Induced correlations and rupture of molecular chaos by anisotropic dissipative Janus hard disks

Phys Rev E. 2019 Nov;100(5-1):052128. doi: 10.1103/PhysRevE.100.052128.

Abstract

A system of smooth "frozen" Janus-type disks is studied. Such disks cannot rotate and are divided by their diameter into two sides of different inelasticities. Taking as a reference a system of colored elastic disks, we find differences in the behavior of the collisions once the anisotropy is included. A homogeneous state, akin to the homogeneous cooling state of granular gases, is seen to arise and the singular behavior of both the collisions and the precollisional correlations are highlighted.