Dissipation Bounds All Steady-State Current Fluctuations

Todd Gingrich, Jordan M. Horowitz, Nikolay Perunov, Jeremy L. England

Research output: Contribution to journalArticle

165 Scopus citations

Abstract

Near equilibrium, small current fluctuations are described by a Gaussian distribution with a linear-response variance regulated by the dissipation. Here, we demonstrate that dissipation still plays a dominant role in structuring large fluctuations arbitrarily far from equilibrium. In particular, we prove a linear-response-like bound on the large deviation function for currents in Markov jump processes. We find that nonequilibrium current fluctuations are always more likely than what is expected from a linear-response analysis. As a small-fluctuations corollary, we derive a recently conjectured uncertainty bound on the variance of current fluctuations.

Original languageEnglish (US)
Article number120601
JournalPhysical review letters
Volume116
Issue number12
DOIs
StatePublished - Mar 21 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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