Giant Kovacs-Like Memory Effect for Active Particles
Abstract
Dynamical properties of self-propelled particles obeying a bounded confidence rule are investigated by means of kinetic theory and agent-based simulations. While memory effects are observed in disordered systems, we show that they also occur in active matter systems. In particular, we find that the system exhibits a giant Kovacs-like memory effect that is much larger than predicted by a generic linear theory. Based on a separation of time scales we develop a nonlinear theory to explain this effect. We apply this theory to driven granular gases and propose further applications to spin glasses.
- Publication:
-
Physical Review Letters
- Pub Date:
- November 2017
- DOI:
- 10.1103/PhysRevLett.119.188001
- arXiv:
- arXiv:1705.05275
- Bibcode:
- 2017PhRvL.119r8001K
- Keywords:
-
- Condensed Matter - Statistical Mechanics
- E-Print:
- Phys. Rev. Lett. 119, 188001 (2017)