Minimum energetic cost to maintain a target nonequilibrium state
Name
PhysRevE.95.042102.pdf
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253.86 KB
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Adobe PDF
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Author(s)
Horowitz, Jordan M.
Zhou, Kevin
England, Jeremy L.
Date Issued
April 2017
Journal
Physical Review E
Publisher
American Physical Society
Citation
Horowitz, Jordan M.; Zhou, Kevin and England, Jeremy L. "Minimum energetic cost to maintain a target nonequilibrium state." Physical Review E 95 (2017 April): 042102. ©2017 American Physical Society
Version
Final published version
Abstract
In the absence of external driving, a system exposed to thermal fluctuations will relax to equilibrium. However, the constant input of work makes it possible to counteract this relaxation and maintain the system in a nonequilibrium steady state. In this article, we use the stochastic thermodynamics of Markov jump processes to compute the minimum rate at which energy must be supplied and dissipated to maintain an arbitrary nonequilibrium distribution in a given energy landscape. This lower bound depends on two factors: the undriven probability current in the equilibrium state and the distance from thermal equilibrium of the target distribution. By showing the consequences of this result in a few simple examples, we suggest general implications for the required energetic costs of macromolecular repair and cytosolic protein localization.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevE.95.042102
