Berlin 2018 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 43: Stochastic thermodynamics and information processing
DY 43.5: Vortrag
Mittwoch, 14. März 2018, 11:00–11:15, BH-N 243
Stochastic thermodynamics of a self-oscillating isothermal machine — •Christopher W. Wächtler1, Philipp Strasberg2, Sabine H. L. Klapp1, Gernot Schaller1, and Chrisotpher Jarzynski3 — 1Institut für Theoretische Physik, Technische Universität Berlin, Germany — 2Complex Systems and Statistical Mechanics, University of Luxembourg, Luxembourg — 3Institute for Physical Science and Technology, University of Maryland, USA
Self-oscillation describes the generation and maintenance of a periodic motion by a source of energy that is lacking a corresponding periodicity. We here examine a theoretically and experimentally studied model of a nanomechanical resonator coupled to a single-electron transistor, i.e. a single electron shuttle. While the dynamics of this system has been studied from different points of view the thermodynamical aspects have not been addressed before. Within the formalism of stochastic thermodynamics we are able to find a consistent thermodynamical description of the system at the semiclassical level including two sources of noise: thermal fluctuations of the resonator and stochastic jumps of the electrons. We derive the first and second law and, furthermore, demonstrate that the system can also serve as an isothermal machine, which performs useful work while maintaining its periodic motion.