SKM 2023 – wissenschaftliches Programm

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PLV: Plenarvorträge

PLV IV

PLV IV: Plenarvortrag

Dienstag, 28. März 2023, 08:30–09:15, HSZ 01

Stochastic thermodynamics: From concepts to model-free inference — •Udo Seifert — II. Institut für Theoretische Physik, Universität Stuttgart

Stochastic thermodynamics provides a universal framework for analyzing nano- and micro-sized non-equilibrium systems. Prominent examples are single molecules, molecular machines, colloidal particles in time-dependent laser traps and biochemical networks. Thermodynamic notions like work, heat and entropy can be identified on the level of individual fluctuating trajectories. They obey universal relations like the fluctuation theorem.

Thermodynamic inference as a general strategy uses consistency constraints derived from stochastic thermodynamics to infer otherwise hidden properties of non-equilibrium systems. As a paradigm for thermodynamic inference, the thermodynamic uncertainty relation discovered in 2015 provides a lower bound on the entropy production through measurements of the dispersion of any current in the system. Likewise, it quantifies the cost of temporal precision for biomolecular processes and provides a model-free bound on the thermodynamic efficiency of molecular motors and microscopic heat engines.