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Time parameters and Lorentz transformations of relativistic stochastic processes
Jörn Dunkel, Peter Hänggi, Stefan Weber
Rules for the transformation of time parameters in relativistic Langevin equations are derived and discussed. In particular, it is shown that, if a coordinate-time parameterized pr…
Noise-assisted spike propagation in myelinated neurons
Anna Ochab-Marcinek, Gerhard Schmid, Igor Goychuk +1
We consider noise-assisted spike propagation in myelinated axons within a multi-compartment stochastic Hodgkin-Huxley model. The noise originates from a finite number of ion channe…
Depinning of three-dimensional drops from wettability defects
Ph. Beltrame, P. Hänggi, U. Thiele
Substrate defects crucially influence the onset of sliding drop motion under lateral driving. A finite force is necessary to overcome the pinning influence even of microscale heter…
Fluctuation theorems in driven open quantum systems
Peter Talkner, Michele Campisi, Peter Hänggi
The characteristic function for the joint measurement of the changes of two commuting observables upon an external forcing of a quantum system is derived. In particular, the statis…
Specific heat anomalies of open quantum systems
Gert-Ludwig Ingold, Peter Hänggi, Peter Talkner
The evaluation of the specific heat of an open, damped quantum system is a subtle issue. One possible route is based on the thermodynamic partition function which is the ratio of t…
Steering Bose-Einstein condensates despite time symmetry
Dario Poletti, Giuliano Benenti, Giulio Casati +2
A Bose-Einstein condensate in an oscillating spatially asymmetric potential is shown to exhibit a directed current for unbiased initial conditions despite time symmetry. This pheno…