Time Reversibility, Correlation Decay and the Steady State Fluctuation Relation for Dissipation

Entropy

Debra J. Searles¹  Barbara M. Johnston³  Denis J. Evans² 

[1] Australian Institute of Bioengineering and Nanotechnology and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Qld 4072, Australia;Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia; E-Mail:;Queensland Micro-and Nanotechnology Centre and School of Biomolecular and Physical Sciences, Griffth University, Brisbane, Qld 4111, Australia; E-Mail:

关键词: steady state fluctuations;    dissipation;    nonequilibrium molecular dynamics simulation;    entropy production;   

DOI  :  10.3390/e15051503

来源: mdpi

【 摘 要 】

Steady state fluctuation relations for nonequilibrium systems are under intense investigation because of their important practical implications in nanotechnology and biology. However the precise conditions under which they hold need clarification. Using the dissipation function, which is related to the entropy production of linear irreversible thermodynamics, we show time reversibility, ergodic consistency and a recently introduced form of correlation decay, called T-mixing, are sufficient conditions for steady state fluctuation relations to hold. Our results are not restricted to a particular model and show that the steady state fluctuation relation for the dissipation function holds near or far from equilibrium subject to these conditions. The dissipation function thus plays a comparable role in nonequilibrium systems to thermodynamic potentials in equilibrium systems.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.