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DY: Fachverband Dynamik und Statistische Physik

DY 6: Statistical Physics far from Thermal Equilibrium I

DY 6.11: Talk

Monday, March 18, 2024, 12:30–12:45, BH-N 334

Mean Back Relaxation for Position and Densities — •Gabriel Knotz and Matthias Krüger — Institute for Theoretical Physics, Göttingen, Germany

Quantifying detailed balance breakage from particle trajectories is an important problem in simulation and experiment. Recently, it was shown that the mean back relaxation (MBR) of displacements along a particle trajectory can serve as a non-equilibrium marker in confinement. To extend the validity to unconfined systems, we propose a new version of the MBR that is defined on the microscopic particle density function which marks the breakage of detailed balance even in bulk, and discuss general properties of the MBR. [1][2]

[1] Till M. Muenker, Gabriel Knotz, Matthias Krüger and Timo Betz. Onsager regression characterizes living systems in passive measurements. bioRxiv:2022.05.15.491928
[2] Gabriel Knotz, Matthias Krüger. Mean Back Relaxation for Position and Densities. arXiv:2311.17477

Keywords: non-equilibrium; correlation function; density