Exact position distribution of a harmonically confined run-and-tumble particle in two dimensions
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 …
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
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 …
full family of “descendants.” The general dynamics introduced in this paper, which we …
Random walks of intermittently self-propelled particles
Motivated by various recent experimental findings, we propose a dynamical model of
intermittently self-propelled particles: active particles that recurrently switch between two …
intermittently self-propelled particles: active particles that recurrently switch between two …
Active colloids in harmonic optical potentials (a)
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 …
numerical simulations. To achieve isotropic and harmonic confinement, we prototype …
Nonequilibrium steady state for harmonically confined active particles
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 …
damped particle confined in a harmonic trap** potential and experiencing active noise …
Stationary states of activity-driven harmonic chains
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 …
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
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 …
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
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 …
patterns. Bees are typically assumed to search for flowers randomly or using simple …
Optimal diffusion of chiral active particles with strategic reorientations
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 …
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 …
active movement (eg, a run-and-tumble particle or active Brownian particle, etc.), that is …