Nonequilibrium Fluctuation-Dissipation Theorem and Heat Production

作者：Lippiello E^*; Baiesi M; Sarracino A

来源：Physical Review Letters, 2014, 112(14): 140602.

DOI：10.1103/PhysRevLett.112.140602

We use a relationship between response and correlation function in nonequilibrium systems to establish a connection between the heat production and the deviations from the equilibrium fluctuation-dissipation theorem. This scheme extends the Harada-Sasa formulation [Phys. Rev. Lett. 95, 130602 (2005)], obtained for Langevin equations in steady states, as it also holds for transient regimes and for discrete jump processes involving small entropic changes. Moreover, a general formulation includes two times and the new concepts of two-time work, kinetic energy, and of a two-time heat exchange that can be related to a nonequilibrium %26quot;effective temperature.%26quot; Numerical simulations of a chain of anharmonic oscillators and of a model for a molecular motor driven by adenosine triphosphate hydrolysis illustrate these points.

• 出版日期2014-4-8