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DY: Fachverband Dynamik und Statistische Physik

DY 61: Brownian Motion and Anomalous Transport

DY 61.2: Vortrag

Freitag, 13. März 2026, 09:45–10:00, ZEU/0118

Resolving hidden barriers and states form time series of projected observables — •Francesco Malcangi and Aljaz Godec — Mathematical Physics and Stochastic Dynamics, Institute of Physics, University of Freiburg

Single molecule experiments, such as FRET, plasmon ruler, and optical tweezers, probe a low- (often one-) dimensional projection of a higher dimensional dynamics. Unless the hidden degrees of freedom relax faster then the observed ones or they are uncoupled, projection induces memory and hides features of the full dynamics, like the presence of hidden states or energy barriers. In this study we show that the higher-order statistics of appropriately chosen functionals of projected paths can reveal some hidden features directly from the time series. In particular, they can unravel and resolve hidden barriers or states.

Keywords: Single molecule; Brownian Functionals; Non Markovianity; Sample-to-sample fluctuations