Regensburg 2016 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 17: Statistical Physics far from Thermal Equilibrium
DY 17.1: Vortrag
Dienstag, 8. März 2016, 10:00–10:15, H48
First-passage fluctuation theorems — •Izaak Neri1, 2, 5, Édgar Roldán1,5, Meik Dörpinghaus3, 5, Heinrich Meyr3, 4, 5, and Frank Jülicher1, 5 — 1Max Planck Institute for the Physics of Complex Systems, Dresden, Germany — 2Max Planck Institute for Cell and Molecular Biology, Dresden, Germany — 3Vodafone Chair Mobile Communications Systems, Dresden — 4Institute for Integrated Signal Processing Systems, Aachen — 5Center for Advancing Electronics Dresden, Dresden
The Second Law of Thermodynamics states that entropy of an isolated system out of equilibrium increases until the equilibrium state is reached. Statistical physics allows to define entropy of a single trajectory in the microscopic phase space. A universal relation for the fluctuations of entropy production of stochastic systems far from thermal equilibrium follows. The entropy production fluctuation theorem states that a steady state process produces exponentially more likely a positive amount of entropy than an equal but negative amount. In this presentation we show an equivalent relation for the first-passage times of entropy production. The probability to produce for the first time a positive amount of entropy is exponentially more likely than the probability to produce for the first time an equivalent but negative amount of entropy. This novel fluctuation relation is illustrated on a couple of examples of stochastic systems.