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DY: Fachverband Dynamik und Statistische Physik

DY 23: Stochastic Thermodynamics

DY 23.6: Talk

Wednesday, March 20, 2024, 10:45–11:00, BH-N 128

Decoding sample-to-sample fluctuations in the time-ordering of non-Markovian sample paths — •Felix Tippner and Aljaz Godec — Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany

Inherent to almost all measurements is the loss of information as only a small number of degrees of freedom can be simultaneously observed. These measurements track projections of higher dimensional stochastic processes. Besides introducing (or enhancing) non-Markovian effects, such projections often hide features like irreversible currents (i.e., driven vs. non-driven) or barriers in the energy landscape. By studying correlations and comparing (systematic) sample-to-sample fluctuations of path-wise observables, such as empirical densities and currents inferred from projected trajectories—which may correspond, e.g., to time series of single-molecule measurements—we are able to gain qualitative insight into the aforementioned hidden features that cannot be observed upon ensemble averaging.

Keywords: Stochastic Processes; Non-Markovian; Fluctuations