Active Brownian particles: Entropy production and fluctuation response

Chaudhuri, Debasish (2014) Active Brownian particles: Entropy production and fluctuation response. Physical Review E, 90 (2). pp. 1-7. ISSN 1539-3755

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Abstract

Within the Rayleigh-Helmholtz model of active Brownian particles, activity is due to a nonlinear velocity-dependent force. In the presence of external trapping potential or constant force, the steady state of the system breaks detailed balance producing a net entropy. Using molecular dynamics simulations, we obtain the probability distributions of entropy production in these steady states. The distribution functions obey fluctuation theorems for entropy production. Using the simulation, we further show that the steady-state response function obeys a modified fluctuation-dissipation relation.

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IITH Creators:
IITH CreatorsORCiD
Chaudhuri, DebasishUNSPECIFIED
Item Type: Article
Additional Information: D.C. thanks Abhishek Dhar and Sriram Ramaswamy for useful discussions and Arnab Saha for a critical reading of the manuscript
Subjects: Physics
Divisions: Department of Physics
Depositing User: Library Staff
Date Deposited: 24 Mar 2015 11:35
Last Modified: 30 Aug 2017 10:59
URI: http://raiith.iith.ac.in/id/eprint/1423
Publisher URL: https://doi.org/10.1103/PhysRevE.90.022131
OA policy: http://www.sherpa.ac.uk/romeo/issn/1539-3755/
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