Active particles in complex and crowded environments

C Bechinger, R Di Leonardo, H Löwen… - Reviews of modern …, 2016 - APS
Differently from passive Brownian particles, active particles, also known as self-propelled
Brownian particles or microswimmers and nanoswimmers, are capable of taking up energy …

Digital Fourier microscopy for soft matter dynamics

F Giavazzi, R Cerbino - Journal of Optics, 2014 - iopscience.iop.org
Soft matter is studied with a large portfolio of methods. Light scattering and video microscopy
are the most employed at optical wavelengths. Light scattering provides ensemble-averaged …

Group formation and cohesion of active particles with visual perception–dependent motility

FA Lavergne, H Wendehenne, T Bäuerle, C Bechinger - Science, 2019 - science.org
Group formation in living systems typically results from a delicate balance of repulsive,
aligning, and attractive interactions. We found that a mere motility change of the individuals …

Run and tumble particle under resetting: a renewal approach

MR Evans, SN Majumdar - Journal of Physics A: Mathematical …, 2018 - iopscience.iop.org
We consider a particle undergoing run and tumble dynamics, in which its velocity
stochastically reverses, in one dimension. We study the addition of a Poissonian resetting …

Run-and-tumble particle in one-dimensional confining potentials: Steady-state, relaxation, and first-passage properties

A Dhar, A Kundu, SN Majumdar, S Sabhapandit… - Physical Review E, 2019 - APS
We study the dynamics of a one-dimensional run-and-tumble particle subjected to confining
potentials of the type V (x)= α| x| p, with p> 0. The noise that drives the particle dynamics is …

Multidimensional stationary probability distribution for interacting active particles

C Maggi, UMB Marconi, N Gnan, R Di Leonardo - Scientific reports, 2015 - nature.com
We derive the stationary probability distribution for a non-equilibrium system composed by
an arbitrary number of degrees of freedom that are subject to Gaussian colored noise and a …

Analytic solution of an active Brownian particle in a harmonic well

M Caraglio, T Franosch - Physical Review Letters, 2022 - APS
We provide an analytical solution for the time-dependent Fokker-Planck equation for a two-
dimensional active Brownian particle trapped in an isotropic harmonic potential. Using the …

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 …

Run-and-tumble particles in two dimensions: Marginal position distributions

I Santra, U Basu, S Sabhapandit - Physical Review E, 2020 - APS
We study a set of run-and-tumble particle (RTP) dynamics in two spatial dimensions. In the
first case of the orientation θ of the particle can assume a set of n possible discrete values …

Probing the spatiotemporal dynamics of catalytic Janus particles with single-particle tracking and differential dynamic microscopy

C Kurzthaler, C Devailly, J Arlt, T Franosch, WCK Poon… - Physical review …, 2018 - APS
We demonstrate differential dynamic microscopy and particle tracking for the
characterization of the spatiotemporal behavior of active Janus colloids in terms of the …