Anomalous Random Flights and Time-Fractional Run-and-Tumble Equations
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Statistical Physics"
DOI: 10.1007/s10955-024-03344-2
Abstract: Random flights (also called run-and-tumble walks or transport processes) represent finite velocity random motions changing direction at any Poissonian time. These models in d-dimension, can be studied giving a general formulation of the problem valid… read more here.
Keywords: run tumble; time; anomalous random; time fractional ... See more keywords
Long-Time Analysis of a Pair of On-lattice and Continuous Run-and-tumble Particles with Jamming Interactions
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Statistical Physics"
DOI: 10.1007/s10955-025-03485-y
Abstract: Run-and-Tumble Particles (RTPs) are a key model of active matter. They are characterized by alternating phases of linear travel and random direction reshuffling. By this dynamic behavior, they break time reversibility and energy conservation at… read more here.
Keywords: run tumble; long time; time; jamming interactions ... See more keywords
Evaluation of bacterial run and tumble motility parameters through trajectory analysis.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of contaminant hydrology"
DOI: 10.1016/j.jconhyd.2018.03.002
Abstract: In this paper, a method for extraction of the behavior parameters of bacterial migration based on the run and tumble conceptual model is described. The methodology is applied to the microscopic images representing the motile… read more here.
Keywords: analysis; model; run tumble; motility ... See more keywords
Dynamics of run-and-tumble particles in dense single-file systems
Sign Up to like & getrecommendations! Published in 2018 at "New Journal of Physics"
DOI: 10.1088/1367-2630/aaef6f
Abstract: We study a minimal model of self-propelled particle in a crowded single-file environment. We extend classical models of exclusion processes (previously analyzed for diffusive and driven tracer particles) to the case where the tracer particle… read more here.
Keywords: tumble particles; single file; particles dense; run tumble ... See more keywords
Run-and-tumble particles with 1D Coulomb interaction: the active jellium model and the non-reciprocal self-gravitating gas
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/ade86d
Abstract: Recently we studied N run-and-tumble particles in one dimension—which switch with rate γ between driving velocities ±v0—interacting via the long range 1D Coulomb potential (also called rank interaction), both in the attractive and in the… read more here.
Keywords: run tumble; non reciprocal; active jellium; density ... See more keywords
Frustrated ‘run and tumble’ of swimming Escherichia coli bacteria in nematic liquid crystals
Sign Up to like & getrecommendations! Published in 2022 at "Interface Focus"
DOI: 10.1098/rsfs.2022.0039
Abstract: In many situations, bacteria move in complex environments, as soils, oceans or the human gut-track, where carrier fluids show complex structures associated with non-Newtonian rheology. Many fundamental questions concerning the ability to navigate in such… read more here.
Keywords: coli; liquid crystals; run tumble; frustrated run ... See more keywords
Geometric and nonequilibrium criticality in run-and-tumble particles with competing motility and attraction.
Sign Up to like & getrecommendations! Published in 2025 at "Physical review. E"
DOI: 10.1103/nw6q-868p
Abstract: Self-propulsion in run-and-tumble particles (RTPs) generates effective attractive interactions that can drive motility-induced phase separation (MIPS), a phenomenon absent in passive systems. Here we investigate RTPs in the presence of explicit attractive interactions and show… read more here.
Keywords: run tumble; motility; nonequilibrium; phase separation ... See more keywords
Run-and-tumble motion in one dimension with space-dependent speed.
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review E"
DOI: 10.1103/physreve.100.052147
Abstract: We consider a particle performing run-and-tumble dynamics with space-dependent speed. The model has biological relevance as it describes motile bacteria or cells in heterogeneous environments. We give exact expression for the probability density function in… read more here.
Keywords: dependent speed; space; space dependent; case ... See more keywords
Run-and-tumble particles in two dimensions: Marginal position distributions.
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review E"
DOI: 10.1103/physreve.101.062120
Abstract: 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, while in… read more here.
Keywords: tumble particles; marginal position; position distributions; position ... See more keywords
Hard core run and tumble particles on a one-dimensional lattice.
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review E"
DOI: 10.1103/physreve.102.062111
Abstract: We study the large scale behavior of a collection of hard core run and tumble particles on a one-dimensional lattice with periodic boundary conditions. Each particle has persistent motion in one direction decided by an… read more here.
Keywords: tumble particles; core run; particles one; run tumble ... See more keywords
Intuitive view of entropy production of ideal run-and-tumble particles.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review. E"
DOI: 10.1103/physreve.105.034113
Abstract: This work investigates the entropy production rate, Π, of the run-and-tumble model with a focus on scaling of Π as a function of the persistence time τ. It is determined that (i) Π vanishes in… read more here.
Keywords: tumble particles; run tumble; entropy production; view entropy ... See more keywords