Superstatistics and non-Gaussian diffusion

R Metzler - The European Physical Journal Special Topics, 2020 - Springer
Brownian motion and viscoelastic anomalous diffusion in homogeneous environments are
intrinsically Gaussian processes. In a growing number of systems, however, non-Gaussian …

Brownian yet non-Gaussian diffusion: from superstatistics to subordination of diffusing diffusivities

AV Chechkin, F Seno, R Metzler, IM Sokolov - Physical Review X, 2017 - APS
A growing number of biological, soft, and active matter systems are observed to exhibit
normal diffusive dynamics with a linear growth of the mean-squared displacement, yet with a …

Breakdown of the Stokes–Einstein relation in supercooled water: The jump-diffusion perspective

V Dubey, S Dueby, S Daschakraborty - Physical Chemistry Chemical …, 2021 - pubs.rsc.org
Although water is the most ubiquitous liquid it shows many thermodynamic and dynamic
anomalies. Some of the anomalies further intensify in the supercooled regime. While many …

Diffusion-limited reactions in dynamic heterogeneous media

Y Lanoiselée, N Moutal, DS Grebenkov - Nature communications, 2018 - nature.com
Most biochemical reactions in living cells rely on diffusive search for target molecules or
regions in a heterogeneous overcrowded cytoplasmic medium. Rapid rearrangements of the …

Fractional Brownian motion with random diffusivity: emerging residual nonergodicity below the correlation time

W Wang, AG Cherstvy, AV Chechkin… - Journal of Physics A …, 2020 - iopscience.iop.org
Numerous examples for a priori unexpected non-Gaussian behaviour for normal and
anomalous diffusion have recently been reported in single-particle tracking experiments …

Random diffusivity from stochastic equations: comparison of two models for Brownian yet non-Gaussian diffusion

V Sposini, AV Chechkin, F Seno, G Pagnini… - New Journal of …, 2018 - iopscience.iop.org
A considerable number of systems have recently been reported in which Brownian yet non-
Gaussian dynamics was observed. These are processes characterised by a linear growth in …

Anomalous diffusion, non-Gaussianity, nonergodicity, and confinement in stochastic-scaled Brownian motion with diffusing diffusivity dynamics

Y Li, K Suleiman, Y Xu - Physical Review E, 2024 - APS
Scaled Brownian motions (SBMs) with power-law time-dependent diffusivity have been used
to describe various types of anomalous diffusion yet Gaussian observed in granular gases …

Brownian motion and beyond: first-passage, power spectrum, non-Gaussianity, and anomalous diffusion

R Metzler - Journal of Statistical Mechanics: Theory and …, 2019 - iopscience.iop.org
Brownian motion is a ubiquitous physical phenomenon across the sciences. After its
discovery by Brown and intensive study since the first half of the 20th century, many different …

A model of non-Gaussian diffusion in heterogeneous media

Y Lanoiselée, DS Grebenkov - Journal of Physics A …, 2018 - iopscience.iop.org
Recent progress in single-particle tracking has shown evidence of the non-Gaussian
distribution of displacements in living cells, both near the cellular membrane and inside the …

Diffusion of nanoparticles with activated hopping in crowded polymer solutions

C Xue, X Shi, Y Tian, X Zheng, G Hu - Nano Letters, 2020 - ACS Publications
A long-distance hop of diffusive nanoparticles (NPs) in crowded environments was
commonly considered unlikely, and its characteristics remain unclear. In this work, we …