Controlling mass and energy diffusion with metamaterials

F Yang, Z Zhang, L Xu, Z Liu, P Jin, P Zhuang… - Reviews of Modern …, 2024 - APS
Diffusion driven by temperature or concentration gradients is a fundamental mechanism of
energy and mass transport that inherently differs from wave propagation in both physical …

Brownian motion of droplets induced by thermal noise

H Zhang, F Wang, L Ratke, B Nestler - Physical Review E, 2024 - APS
Brownian motion (BM) is pivotal in natural science for the stochastic motion of microscopic
droplets. In this study, we investigate BM driven by thermal composition noise at submicro …

Being Heterogeneous Is Advantageous: Extreme Brownian Non-Gaussian Searches

V Sposini, S Nampoothiri, A Chechkin, E Orlandini… - Physical Review Letters, 2024 - APS
Redundancy in biology may be explained by the need to optimize extreme searching
processes, where one or few among many particles are requested to reach the target like in …

Generalized Langevin equation with fluctuating diffusivity

T Miyaguchi - Physical Review Research, 2022 - APS
A generalized Langevin equation with fluctuating diffusivity (GLEFD) is proposed, and it is
shown that the GLEFD satisfies a generalized fluctuation-dissipation relation. If the memory …

Being heterogeneous is disadvantageous: Brownian non-Gaussian searches

V Sposini, S Nampoothiri, A Chechkin, E Orlandini… - Physical Review E, 2024 - APS
Diffusing diffusivity models, polymers in the grand canonical ensemble and polydisperse,
and continuous-time random walks all exhibit stages of non-Gaussian diffusion. Is non …

Multilayered noise model for transport in complex environments

NK Voulgarakis - Physical Review E, 2023 - APS
Transport in complex fluidic environments often exhibits transient subdiffusive dynamics
accompanied by non-Gaussian probability density profiles featuring a nonmonotonic non …

Regular and anomalous diffusion: I. Foundations

I Eliazar - Journal of Physics A: Mathematical and Theoretical, 2024 - iopscience.iop.org
Diffusion is a generic term for random motions whose positions become more and more
diffuse with time. Diffusion is of major importance in numerous areas of science and …

Brownian yet non-Gaussian diffusion of a light particle in heavy gas: Lorentz-gas-based analysis

F Nakai, T Uneyama - Physical Review E, 2023 - APS
Non-Gaussian diffusion was recently observed in a gas mixture with mass and fraction
contrast [F. Nakai, Phys. Rev. E 107, 014605 (2023) 2470-0045 10.1103/PhysRevE …

Nanorod Diffusion near the Solid–Liquid Interface with Varied Wall Nonuniformity

J Yang, L Yang, RY Dong - Langmuir, 2024 - ACS Publications
The complex diffusion behaviors of rod-shaped nanoparticles near the solid–liquid interface
are closely related to various biological processes and technological applications. Despite …

Doubly stochastic continuous time random walk

M Arutkin, S Reuveni - Physical Review Research, 2024 - APS
Since its introduction some 60 years ago, the Montroll-Weiss continuous time random walk
has found numerous applications due its ease of use and ability to describe both regular …