期刊
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
卷 53, 期 36, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1751-8121/ab8f3c
关键词
active matter; large deviations; phase separation; active work
资金
- Scottish Funding Council
- PRIN [2015K7KK8L, 2017/WZFTZP]
We study the large deviations of the distributionP(W-tau) of the work associated with the propulsion of individual active Brownian particles in a time interval tau, in the region of the phase diagram where macroscopic phase separation takes place.P(W-tau) is characterised by two peaks, associated to particles in the gaseous and in the clusterised phases, and two separate non-convex branches. Accordingly, the generating function ofW(tau)'s cumulants displays a double singularity. We discuss the origin of such non-convex branches in terms of the peculiar dynamics of the system phases, and the relation between the observation time tau and the typical persistence times of the particles in the two phases.
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