Realizing Quantitative Quasiparticle Modeling of Skyrmion Dynamics in Arbitrary Potentials

MA Brems, T Sparmann, SM Fröhlich, LC Dany… - Physical Review Letters, 2025 - APS
We demonstrate fully quantitative Thiele model simulations of magnetic skyrmion dynamics
on previously unattainable experimentally relevant large length and time scales by …

Brownian ratchets: How stronger thermal noise can reduce diffusion

J Spiechowicz, M Kostur, J Łuczka - Chaos: An Interdisciplinary Journal …, 2017 - pubs.aip.org
We study diffusion properties of an inertial Brownian motor moving on a ratchet substrate, ie,
a periodic structure with broken reflection symmetry. The motor is driven by an unbiased …

Non-monotonic temperature dependence of chaos-assisted diffusion in driven periodic systems

J Spiechowicz, P Talkner, P Hänggi… - New Journal of …, 2016 - iopscience.iop.org
The spreading of a cloud of independent Brownian particles typically proceeds more
effectively at higher temperatures, as it derives from the commonly known Sutherland …

Normal and anomalous diffusion of Brownian particles on disordered potentials

R Salgado-García - Physica A: Statistical Mechanics and its Applications, 2016 - Elsevier
In this work we study the transition from normal to anomalous diffusion of Brownian particles
on disordered potentials. The potential model consists of a series of “potential hills”(defined …

Noise-induced rectification in out-of-equilibrium structures

R Salgado-García - Physical Review E, 2019 - APS
We consider the motion of overdamped particles over random potentials subjected to a
Gaussian white noise and a time-dependent periodic external forcing. The random potential …

Effects of microwave electric fields on the translational diffusion of dipolar molecules in surface potential: A simulation study

SV Kapranov, GA Kouzaev - Surface Science, 2018 - Elsevier
Variations of effective diffusion coefficient of polar molecules exposed to microwave electric
fields in a surface potential are studied by solving coupled stochastic differential equations …

Scarce defects induce anomalous diffusion

M Hidalgo-Soria… - Journal of Statistical …, 2017 - iopscience.iop.org
We introduce a simple model of deterministic particles in weakly disordered media which
exhibits a transition from normal to anomalous diffusion. The model consists of a set of non …

Unbiased diffusion of Brownian particles on disordered correlated potentials

R Salgado-Garcia, C Maldonado - Journal of Statistical …, 2015 - iopscience.iop.org
In this work we study the diffusion of non-interacting overdamped particles, moving on
unbiased disordered correlated potentials, subjected to Gaussian white noise. We obtain an …

Active particles in reactive disordered media: How does adsorption affect diffusion?

R Salgado-García - Physica A: Statistical Mechanics and its Applications, 2022 - Elsevier
In this work we study analytically and numerically the transport properties of non-interacting
active particles moving on a d-dimensional disordered medium. The disorder is modeled by …

Specific Features of the Simulation of the Particle Diffusion Processes in Spatially Periodic Fields

VY Аksenova, IG Marchenko… - East European Journal …, 2022 - periodicals.karazin.ua
This paper is devoted to the studies of the specific features of the simulation of the particle
diffusion processes in space–periodic potentials using Langevin equations. Different …