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 …

Brownian motion under intermittent harmonic potentials

I Santra, S Das, SK Nath - Journal of Physics A: Mathematical …, 2021 - iopscience.iop.org
We study the effects of an intermittent harmonic potential of strength μ= μ 0 ν—that switches
on and off stochastically at a constant rate γ, on an overdamped Brownian particle with …

Soft and Living Matter: a perspective

S Sinha - The European Physical Journal Special Topics, 2024 - Springer
This review article offers a perspective on Soft Matter, kee** Brownian motion, one of the
foundational pillars of statistical mechanics and Soft Matter physics at the centerstage. The …

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 …

Direction reversing active Brownian particle in a harmonic potential

I Santra, U Basu, S Sabhapandit - Soft Matter, 2021 - pubs.rsc.org
We study the two-dimensional motion of an active Brownian particle of speed v0, with
intermittent directional reversals in the presence of a harmonic trap of strength μ. The …

Activity driven transport in harmonic chains

I Santra, U Basu - SciPost Physics, 2022 - scipost.org
The transport properties of an extended system driven by active reservoirs is an issue of
paramount importance, which remains virtually unexplored. Here we address this issue, for …

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 …

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 …

Heat fluctuations in a harmonic chain of active particles

D Gupta, DA Sivak - Physical Review E, 2021 - APS
One of the major challenges in stochastic thermodynamics is to compute the distributions of
stochastic observables for small-scale systems for which fluctuations play a significant role …

Motion of an active particle with dynamical disorder

K Goswami, R Chakrabarti - Soft Matter, 2022 - pubs.rsc.org
We propose a model for investigating the motion of a single active particle in a
heterogeneous environment where the heterogeneity may arise due to crowding …