Exact position distribution of a harmonically confined run-and-tumble particle in two dimensions

NR Smith, P Le Doussal, SN Majumdar, G Schehr - Physical Review E, 2022 - APS
We consider an overdamped run-and-tumble particle in two dimensions, with self-propulsion
in an orientation that stochastically rotates by 90∘ at a constant rate, clockwise or …

[HTML][HTML] Viscoelastic active diffusion governed by nonequilibrium fractional Langevin equations: Underdamped dynamics and ergodicity breaking

S Joo, JH Jeon - Chaos, Solitons & Fractals, 2023 - Elsevier
In this work, we investigate the active dynamics and ergodicity breaking of a nonequilibrium
fractional Langevin equation (FLE) with a power-law memory kernel of the form K (t)∼ t−(2 …

Stochastic energetics of a colloidal particle trapped in a viscoelastic bath

F Darabi, BR Ferrer, JR Gomez-Solano - New Journal of Physics, 2023 - iopscience.iop.org
We investigate the statistics of the fluctuations of the energy transfer between an
overdamped Brownian particle, whose motion is confined by a stationary harmonic potential …

Active Diffusion of Self-Propelled Particles in Semiflexible Polymer Networks

Y Kim, WK Kim, JH Jeon - Macromolecules, 2024 - ACS Publications
Mesh-like structures, such as mucus gels or cytoskeleton networks, are ubiquitous in
biological systems. These intricate structures are composed of cross-linked, semiflexible …

Harmonic chain driven by active Rubin bath: transport properties and steady-state correlations

R Sarkar, I Santra, U Basu - Proceedings A, 2024 - royalsocietypublishing.org
Characterizing the properties of an extended system driven by active reservoirs is a question
of increasing importance. Here, we address this question in two steps. We start by …

Local detailed balance for active particle models

F Khodabandehlou, C Maes - arxiv preprint arxiv:2401.11850, 2024 - arxiv.org
Starting from a Huxley-type model for an agitated vibrational mode, we propose an
embedding of standard active particle models in terms of two-temperature processes. One …

Ergodicity bounds for stable Ornstein–Uhlenbeck systems in Wasserstein distance with applications to cutoff stability

G Barrera, MA Högele - Chaos: An Interdisciplinary Journal of …, 2023 - pubs.aip.org
This article establishes cutoff stability also known as abrupt thermalization for generic
multidimensional Hurwitz stable Ornstein–Uhlenbeck systems with (possibly degenerate) …

Confined run-and-tumble particles with non-Markovian tumbling statistics

O Farago, NR Smith - Physical Review E, 2024 - APS
Confined active particles constitute simple, yet realistic, examples of systems that converge
into a nonequilibrium steady state. We investigate a run-and-tumble particle in one spatial …

Time-delayed Duffing oscillator in an active bath

AA Valido, M Coccolo, MAF Sanjuán - Physical Review E, 2023 - APS
During recent decades active particles have attracted an incipient attention as they have
been observed in a broad class of scenarios, ranging from bacterial suspension in living …

Stationary state of harmonic chains driven by boundary resetting

R Sarkar, P Roy - Journal of Statistical Mechanics: Theory and …, 2023 - iopscience.iop.org
We study the nonequilibrium steady state of an ordered harmonic chain of N oscillators
connected to two walls which undergo diffusive motion with stochastic resetting. The …