In silico studies of active probe dynamics in crowded media

L Theeyancheri, R Sahoo, P Kumar, R Chakrabarti - ACS omega, 2022 - ACS Publications
Active systems are made of agents, each of which takes energy from the environment and
converts it to directed motion. Therefore, by construction, these systems function out of …

Exploring non-equilibrium processes and spatio-temporal scaling laws in heated egg yolk using coherent X-rays

ND Anthuparambil, A Girelli, S Timmermann… - Nature …, 2023 - nature.com
The soft-grainy microstructure of cooked egg yolk is the result of a series of out-of-
equilibrium processes of its protein-lipid contents; however, it is unclear how egg yolk …

Non-Gaussian displacement distributions in models of heterogeneous active particle dynamics

E Lemaitre, IM Sokolov, R Metzler… - New Journal of …, 2023 - iopscience.iop.org
We study the effect of randomly distributed diffusivities and speeds in two models for active
particle dynamics with active and passive fluctuations. We demonstrate how non-Gaussian …

Solid state reduction of nickelate thin films

W Wei, K Shin, H Hong, Y Shin, AS Thind, Y Yang… - Physical Review …, 2023 - APS
The square-planar nickelates are a class of superconductors analogous to the cuprates and
promise to provide insight into the pairing mechanism in high-temperature superconducting …

Anomalous diffusion of active Brownian particles in responsive elastic gels: Nonergodicity, non-Gaussianity, and distributions of trapping times

K Goswami, AG Cherstvy, A Godec, R Metzler - Physical Review E, 2024 - APS
Understanding actual transport mechanisms of self-propelled particles (SPPs) in complex
elastic gels—such as in the cell cytoplasm, in in vitro networks of chromatin or of F-actin …

How macromolecules softness affects diffusion under crowding

E Słyk, T Skóra, S Kondrat - Soft Matter, 2022 - pubs.rsc.org
Diffusion in a macromolecularly crowded environment is essential for many intracellular
processes, from metabolism and catalysis to gene transcription and translation. So far …

Dynamics of a spherical self-propelled tracer in a polymeric medium: interplay of self-propulsion, stickiness, and crowding

RS Yadav, C Das, R Chakrabarti - Soft Matter, 2023 - pubs.rsc.org
We employ computer simulations to study the dynamics of a self-propelled spherical tracer
particle in a viscoelastic medium, made of a long polymer chain. Here, the interplay between …

Diffusive regimes in a two-dimensional chiral fluid

F Vega Reyes, MA López-Castaño… - Communications …, 2022 - nature.com
Diffusion is a fundamental aspect of transport processes in biological systems, and thus, in
the development of life itself. And yet, the diffusive dynamics of active fluids with directed …

Chemically symmetric and asymmetric self-driven rigid dumbbells in a 2D polymer gel

P Kumar, L Theeyancheri, R Chakrabarti - Soft Matter, 2022 - pubs.rsc.org
We employ computer simulations to unveil the translational and rotational dynamics of self-
driven chemically symmetric and asymmetric rigid dumbbells in a two-dimensional polymer …

Hidden one-dimensional, strongly nested, and almost half-filled Fermi surface in superconductors

P Worm, M Kitatani, JM Tomczak, L Si, K Held - Physical Review B, 2022 - APS
All previous cuprate superconductors display a set of common features:(i) vicinity to a Cu 3 d
9 configuration;(ii) separated CuO 2 planes; and (iii) superconductivity for doping δ∼ 0.1 …