43 citations · 65 across the 10 of their papers we have counts for
10 papers
Poisson-shot-noise hybrid machines: efficiency and quasistatic divergence
Rita Majumdar, Costantino Di Bello, Ralf Metzler +2
We study stochastic models of a microscopic active heat engine, comprised of an overdamped Brownian particle trapped in a harmonic potential, and in simultaneous contact with therm…
Genuine and spurious (non-)ergodicity in single particle tracking
Wei Wang, Qing Wei, Igor M. Sokolov +2
In single-particle tracking experiments measuring anomalous diffusion dynamics, understanding ergodicity is crucial, as it ensures that the time average of an observable matches th…
An Extended Model of Non-Integer-Dimensional Space for Anisotropic Solids with q-Deformed Derivatives
José Weberszpil, Ralf Metzler
We propose a non-integer-dimensional spatial model for anisotropic solids by incorporating a q-deformed derivative operator, inspired by the Tsallis nonadditive entropy framework.…
Different behaviors of diffusing diffusivity dynamics based on three different definitions of fractional Brownian motion
Wei Wang, Aleksei V. Chechkin, Ralf Metzler
The effects of a "diffusing diffusivity" (DD), a stochastically time-varying diffusion coefficient, are explored within the frameworks of three different forms of fractional Browni…
Fractional Brownian motion with mean-density interaction: a myopic self-avoiding fractional stochastic process
Jonathan House, Rashad Bakhshizada, Skirmantas Janušonis +2
Fractional Brownian motion is a Gaussian stochastic process with long-range correlations in time; it has been shown to be a useful model of anomalous diffusion. Here, we investigat…
Paradoxical non-Gaussian behavior in fractional Laplace motion with drift
Wei Wang, Yingjie Liang, Aleksei V. Chechkin +1
We study fractional Laplace motion (FLM) obtained from subordination of fractional Brownian motion to a gamma process, in the presence of an external drift that acts on the composi…
Fractional Langevin equation far from equilibrium: Riemann-Liouville fractional Brownian motion, spurious nonergodicity and aging
Qing Wei, Wei Wang, Yifa Tang +2
We consider the fractional Langevin equation far from equilibrium (FLEFE) to describe stochastic dynamics which do not obey the fluctuation-dissipation theorem, unlike the conventi…
Brownian particle in a Poisson-shot-noise active bath: exact statistics, effective temperature, and inference
Costantino Di Bello, Rita Majumdar, Rahul Marathe +2
We study the dynamics of an overdamped Brownian particle in a thermal bath that contains a dilute solution of active particles. The particle moves in a harmonic potential and exper…
Numerical approach to unbiased and driven generalized elastic model
Mohsen Ghasemi Nezhadhaghighi, Aleksei V. Chechkin, Ralf Metzler
From scaling arguments and numerical simulations, we investigate the properties of the generalized elastic model (GEM), that is used to describe various physical systems such as po…
First passage behaviour of fractional Brownian motion in two-dimensional wedge domains
J. -H. Jeon, A. V. Chechkin, R. Metzler
We study the survival probability and the corresponding first passage time density of fractional Brownian motion confined to a two-dimensional open wedge domain with absorbing boun…