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51 papers · 1 filter
Improved mean squared displacement analysis for anomalous single particle trajectories
Jakub Ślęzak, Joanna Janczura, Diego Krapf +1
The mean squared displacement (MSD) is a cornerstone in the analysis of diffusion processes in complex media. When the system is heterogeneous and, in particular, when single-parti…
Anomalous statistics in the Langevin equation with fluctuating diffusivity: from Brownian yet non-Gaussian diffusion to anomalous diffusion and ergodicity breaking
Takuma Akimoto, Jae-Hyung Jeon, Ralf Metzler +3
Diffusive motion is a fundamental transport mechanism in physical and biological systems, governing dynamics across a wide range of scales -- from molecular transport to animal for…
Reversal of tracer advection and Hall drift in an interacting chiral fluid
Erik Kalz, Shashank Ravichandir, Johannes Birkenmeier +2
Chiral fluids are defined by broken mirror or time-reversal symmetry, giving rise to tensorial transport coefficients with antisymmetric components. A key example is the odd mobili…
Fastest first-passage time statistics for time-dependent particle injection
Denis S. Grebenkov, Ralf Metzler, Gleb Oshanin
A common scenario in a variety of biological systems is that multiple particles are searching in parallel for an immobile target located in a bounded domain, and the fastest among…
Exactly solvable diffusions from space-time transformations
Costantino Di Bello, Édgar Roldán, Ralf Metzler
We consider a general one-dimensional overdamped diffusion model described by the Itô stochastic differential equation (SDE) , where is the st…
Power-efficiency trade-off for finite-time quantum harmonic Otto heat engine via phase-space approach
Hyun-Myung Chun, Jong-Min Park
Thermodynamic constraints impose a trade-off between power and efficiency in heat engines, preventing the simultaneous achievement of high power and high efficiency. For classical…