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Please use this identifier to cite or link to this item: http://dspace.bits-pilani.ac.in:8080/jspui/handle/123456789/14510
Title: Most probable paths for active Ornstein-Uhlenbeck particles
Authors: Dutta, Sandipan
Keywords: Physics
Onsager Machlup
Ornstein-Uhlenbeck
Issue Date: May-2023
Publisher: APS
Abstract: Fluctuations play an important role in the dynamics of stochastic systems. In particular, for small systems, the most probable thermodynamic quantities differ from their averages because of the fluctuations. Using the Onsager Machlup variational formalism we analyze the most probable paths for nonequilibrium systems, in particular, active Ornstein-Uhlenbeck particles, and investigate how the entropy production along these paths differs from the average entropy production. We investigate how much information about their nonequilibrium nature can be obtained from their extremum paths and how these paths depend on the persistence time and their swim velocities. We also look at how the entropy production along the most probable paths varies with the active noise and how it differs from the average entropy production. This study would be useful to design artificial active systems with certain target trajectories.
URI: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.107.054130
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14510
Appears in Collections:Department of Physics

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