Dresden 2017 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 26: Posters - Statistical Physics, Stochastic Thermodynamics

DY 26.7: Poster

Dienstag, 21. März 2017, 18:15–21:00, P3

Apparent Entropy Production in Networks with Hidden Degrees of Freedom — •Matthias Uhl, Patrick Pietzonka, and Udo Seifert — II. Institut für Theoretische Physik, Universität Stuttgart, 70550 Stuttgart, Germany

The fluctuation theorem for entropy production is a remarkable symmetry relation for the distribution of produced entropy that holds universally in non-equilibrium steady states of Markovian systems. However, in systems with degrees of freedom that are hidden from the observer, it is not possible to infer the amount of produced entropy exactly. Previous work [1] suggested that a relation similar to the fluctuation theorem may hold at least approximately for such systems if one considers the apparent entropy production. By extending the notion of apparent entropy production to discrete bipartite systems we investigate which criteria have to be met for such a modified fluctuation theorem to hold in the large deviation limit and how the deviations from the regular fluctuation theorem can be used to infer information on the hidden degree of freedom.

[1] J. Mehl, B. Lander, C. Bechinger, and U. Seifert, Phys. Rev. Lett. 108, 220601 (2012)