How Far from Equilibrium Is Active Matter?
Centre National de la Recherche Scientifique · Délégation Paris 7 · +4 more institutions
Abstract
Active matter systems are driven out of thermal equilibrium by a lack of generalized Stokes-Einstein relation between injection and dissipation of energy at the microscopic scale. We consider such a system of interacting particles, propelled by persistent noises, and show that, at small but finite persistence time, their dynamics still satisfy a time-reversal symmetry. To do so, we compute perturbatively their steady-state measure and show that, for short persistent times, the entropy production rate vanishes. This endows such systems with an effective fluctuation-dissipation theorem akin to that of thermal equilibrium systems. Last, we show how interacting particle systems with viscous drags and correlated…
Citation impact
- FWCI
- 41.14
- Percentile
- 100%
- References
- 53
Authors
6- ÉFÉtienne FodorCorresponding
Centre National de la Recherche Scientifique, Délégation Paris 7, Université Paris Cité, Sorbonne Paris Cité
- CNCesare Nardini
University of Edinburgh, University of Cambridge
- MEMichael E. Cates
University of Cambridge, University of Edinburgh
- JTJulien Tailleur
Université Paris Cité, Centre National de la Recherche Scientifique, Sorbonne Paris Cité, Délégation Paris 7
- PVPaolo Visco
Sorbonne Paris Cité, Université Paris Cité, Centre National de la Recherche Scientifique, Délégation Paris 7
Topics & keywords
- Autocatalytic reaction
- Active matter
- Physics
- Statistical physics
- Affordable and clean energy