Effective Dissipation: Breaking Time-Reversal Symmetry in Driven Microscopic Energy Transmission

Peer reviewed: 
Yes, item is peer reviewed.
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Faculty/Staff
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A.I. Brown and D.A. Sivak. Effective dissipation: breaking time-reversal symmetry in driven microscopic energy transmission. Physical Review E., volume 94, pg 032137 (2016)   https://doi.org/10.1103/PhysRevE.94.032137

Date created: 
2016-09-30
Identifier: 
DOI: 10.1103/PhysRevE.94.032137
Abstract: 

At molecular scales, fluctuations play a significant role and prevent biomolecular processes from always proceeding in a preferred direction, raising the question of how limited amounts of free energy can be dissipated to obtain directed progress. We examine the system and process characteristics that efficiently break time-reversal symmetry at fixed energy loss; in particular for a simple model of a molecular machine, an intermediate energy barrier produces unusually high asymmetry for a given dissipation. We relate the symmetry-breaking factors found in this model to recent observations of biomolecular machines.

Language: 
English
Document type: 
Article
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