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DY: Fachverband Dynamik und Statistische Physik

DY 32: Focus Session: Physics of Fluctuating Paths (joint session DY/CPP)

DY 32.2: Talk

Wednesday, March 29, 2023, 15:15–15:30, ZEU 160

Fluctuation theorem for time reversal markers — •Gabriel Knotz, Till M. Muenker, Timo Betz, and Matthias Krüger — Fakultät für Physik, Georg-August-Universität, Göttingen, Germany

The analysis of particle trajectories is of high theoretical and experimental interest. Especially if hidden degrees are present, detecting broken detailed balance is a challenging task. We introduce and analyze a class of observables with certain symmetry properties under time reversal of trajectories that detect the breakage of detailed balance. Further, these observables fulfill a new form of fluctuation theorem and, under certain conditions, this fluctuation theorem provides bounds and relations for the total change in entropy. These findings are not limited to Markov or overdamped dynamics.