Models of anomalous diffusion in crowded environments

IM Sokolov - Soft Matter, 2012 - pubs.rsc.org
A particle's motion in crowded environments often exhibits anomalous diffusion, whose
nature depends on the situation at hand and is formalized within different physical models …

A toolbox for determining subdiffusive mechanisms

Y Meroz, IM Sokolov - Physics Reports, 2015 - Elsevier
Subdiffusive processes have become a field of great interest in the last decades, due to
amounting experimental evidence of subdiffusive behavior in complex systems, and …

Estimating the anomalous diffusion exponent for single particle tracking data with measurement errors-An alternative approach

K Burnecki, E Kepten, Y Garini, G Sikora, A Weron - Scientific reports, 2015 - nature.com
Accurately characterizing the anomalous diffusion of a tracer particle has become a central
issue in biophysics. However, measurement errors raise difficulty in the characterization of …

Nonergodic diffusion of single atoms in a periodic potential

F Kindermann, A Dechant, M Hohmann, T Lausch… - Nature Physics, 2017 - nature.com
Diffusion can be used to infer the microscopic features of a system from the observation of its
macroscopic dynamics. Brownian motion accurately describes many diffusive systems, but …

Mean-squared-displacement statistical test for fractional Brownian motion

G Sikora, K Burnecki, A Wyłomańska - Physical Review E, 2017 - APS
Anomalous diffusion in crowded fluids, eg, in cytoplasm of living cells, is a frequent
phenomenon. A common tool by which the anomalous diffusion of a single particle can be …

Subdiffusion equation with fractional Caputo time derivative with respect to another function in modeling transition from ordinary subdiffusion to superdiffusion

T Kosztołowicz - Physical Review E, 2023 - APS
We use a subdiffusion equation with fractional Caputo time derivative with respect to another
function g (g-subdiffusion equation) to describe a smooth transition from ordinary …

Statistical properties of the anomalous scaling exponent estimator based on time-averaged mean-square displacement

G Sikora, M Teuerle, A Wyłomańska, D Grebenkov - Physical Review E, 2017 - APS
The most common way of estimating the anomalous scaling exponent from single-particle
trajectories consists of a linear fit of the dependence of the time-averaged mean-square …

A stochastic solution with Gaussian stationary increments of the symmetric space-time fractional diffusion equation

G Pagnini, P Paradisi - Fractional Calculus and Applied Analysis, 2016 - degruyter.com
The stochastic solution with Gaussian stationary increments is established for the symmetric
space-time fractional diffusion equation when 0< β< α≤ 2, where 0< β≤ 1 and 0< α≤ 2 are …

Disentangling sources of anomalous diffusion

F Thiel, F Flegel, IM Sokolov - Physical Review Letters, 2013 - APS
We show that some important properties of subdiffusion of unknown origin (including ones of
mixed origins) can be easily assessed when finding the “fundamental moment” of the …

Mathematical modelling of subdiffusion-reaction systems

AA Nepomnyashchy - Mathematical Modelling of Natural …, 2016 - mmnp-journal.org
A review of recent developments in the theoretical description and mathematical modelling
of subdiffusion-reaction systems is presented. A number of subdiffusion-reaction models are …