Regensburg 2019 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 55: Poster: Noneq. Stat. Phys., Stat. Bio. Phys., Brownian

DY 55.1: Poster

Donnerstag, 4. April 2019, 15:00–18:00, Poster B2

Coherent oscillations in periodically driven systems — •Lukas Oberreiter¹, Andre Cardoso Barato², and Udo Seifert¹ — ¹II. Institut für Theoretische Physik, Universität Stuttgart, 70550 Stuttgart, Germany — ²Department of Physics, University of Houston, Houston, Texas 77204, USA

Biochemical oscillations are prevalent in living organisms. Organisms count time with biochemical oscillators to properly time their functions. Since these oscillations rely on a stochastic process fluctuations in the period of oscillation lead to a finite precision. The latter is quantified by the number of coherent oscillations. A former study [1] revealed that the number of coherent oscillations of an autonomous system is bounded by the topology of the network of states and the thermodynamic force that drives the system out of equilibrium. Here, we extend the analysis to periodically driven systems. We construct a specific external protocol showing that the number of coherent oscillations is not necessarily bounded. Moreover, the trade-off between the number of coherent oscillations and its costs, the entropy production rate, is investigated.

[1] A. C. Barato and U. Seifert, Phys. Rev. E 95, 062409 (2017)