Berlin 2024 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 6: Statistical Physics far from Thermal Equilibrium I

DY 6.9: Vortrag

Montag, 18. März 2024, 12:00–12:15, BH-N 334

Conditioning in equilibrium and nonequilibrium baths — •Ion Santra and Matthias Krüger — University of Goettingen

Generalized linear Langevin equations are a popular way of describing tracer dynamics in viscoelastic baths. In this talk, starting from a microscopic bath model, I will discuss how the usual form of Generalized Langevin equations are no more valid in the case of nonequilibrium baths. We show that the term dependent on the initial conditions, which is usually dropped for equilibrium baths, become important. A simple way to understand the contribution from this term is to look at conditioned displacements of the tracer in stationary state.

Keywords: Nnonequilibrium stationary states; Generalized Langevin equation; Viscoelastic systems