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] The parental active model: A unifying stochastic description of self-propulsion

L Caprini, AR Sprenger, H Löwen… - The Journal of Chemical …, 2022 - pubs.aip.org
We propose a new overarching model for self-propelled particles that flexibly generates a
full family of “descendants.” The general dynamics introduced in this paper, which we …

Random walks of intermittently self-propelled particles

A Datta, C Beta, R Großmann - Physical Review Research, 2024 - APS
Motivated by various recent experimental findings, we propose a dynamical model of
intermittently self-propelled particles: active particles that recurrently switch between two …

Active colloids in harmonic optical potentials (a)

I Buttinoni, L Caprini, L Alvarez… - Europhysics …, 2022 - iopscience.iop.org
We study the motion of active Janus colloids in an optical trap using experiments, theory and
numerical simulations. To achieve isotropic and harmonic confinement, we prototype …

Nonequilibrium steady state for harmonically confined active particles

NR Smith, O Farago - Physical Review E, 2022 - APS
We study the full nonequilibrium steady-state distribution P st (X) of the position X of a
damped particle confined in a harmonic trap** potential and experiencing active noise …

Stationary states of activity-driven harmonic chains

R Sarkar, I Santra, U Basu - Physical Review E, 2023 - APS
We study the stationary state of a chain of harmonic oscillators driven by two active
reservoirs at the two ends. These reservoirs exert correlated stochastic forces on the …

Dynamics of switching processes: general results and applications in intermittent active motion

I Santra, KS Olsen, D Gupta - Soft Matter, 2024 - pubs.rsc.org
Systems switching between different dynamical phases is a ubiquitous phenomenon. The
general understanding of such a process is limited. To this end, we present a general …

Modeling bee movement shows how a perceptual masking effect can influence flower discovery

A Morán, M Lihoreau, A Pérez-Escudero… - PLOS Computational …, 2023 - journals.plos.org
Understanding how pollinators move across space is key to understanding plant mating
patterns. Bees are typically assumed to search for flowers randomly or using simple …

Optimal diffusion of chiral active particles with strategic reorientations

KS Olsen, H Löwen - Physical Review E, 2024 - APS
We investigate the competing effects of the simultaneous presence of chirality and
generalized tumbles in the dynamics of an active Brownian particle. Chiral active particles …

Nonequilibrium steady state of trapped active particles

NR Smith - Physical Review E, 2023 - APS
We consider an overdamped particle with a general physical mechanism that creates noisy
active movement (eg, a run-and-tumble particle or active Brownian particle, etc.), that is …