# Universal scaling in active single-file dynamics.

@article{Dolai2020UniversalSI, title={Universal scaling in active single-file dynamics.}, author={Pritha Dolai and Arghya Das and Anupam Kundu and Chandan Dasgupta and Abhishek Dhar and K. Vijay Kumar}, journal={Soft matter}, year={2020} }

We study the single-file dynamics of three classes of active particles: run-and-tumble particles, active Brownian particles and active Ornstein-Uhlenbeck particles. At high activity values, the particles, interacting via purely repulsive and short-ranged forces, aggregate into several motile and dynamical clusters of comparable size, and do not display bulk phase-segregation. In this dynamical steady-state, we find that the cluster size distribution of these aggregates is a scaled function of…

## 10 Citations

Harnessing confinement and driving to tune active particle dynamics

- Physics
- 2021

A distinguishing feature of active particles is the nature of the non-equilibrium noise driving their dynamics. Control of these noise properties is, therefore, of both fundamental and applied…

Hard core run and tumble particles on a one-dimensional lattice.

- PhysicsPhysical review. E
- 2020

The large scale behavior of a collection of hard core run and tumble particles on a one-dimensional lattice with periodic boundary conditions is studied to calculate the hydrodynamic coefficients of diffusivity and conductivity and show that the Einstein relation is violated in both regimes.

Anomalous diffusion of self-align active particle in flow background

- Physics
- 2022

Active particles (i.e., self-propelled particles or called microswimmers), different from passive Brownian particles, possess more complicated translational and angular dynamics, which can generate a…

Tracer dynamics in one dimensional gases of active or passive particles

- PhysicsJournal of Statistical Mechanics: Theory and Experiment
- 2022

We consider one-dimensional systems comprising either active run-and-tumble particles (RTPs) or passive Brownian random walkers. These particles are either noninteracting or have hardcore exclusions.…

Active mixtures in a narrow channel: motility diversity changes cluster sizes.

- PhysicsSoft matter
- 2021

A minimal model for bacteria in a narrow channel to assess the relative importance of motility diversity and confinement is developed and an effective theory is developed to give accurate expressions for the CSD, the effective α, and the average fraction of mobile particles.

Deterministic Active Matter Generated Using Strange Attractors

- Physics
- 2021

Strange attractors can be induced by governing differential or integro-differential equations associated with nonlinear dynamical systems, but they may also drive such dynamics. We outline a flexible…

Dynamics of a randomly kicked particle

- MathematicsJournal of Physics A: Mathematical and Theoretical
- 2021

Lévy walk (LW) process has been used as a simple model for describing anomalous diffusion in which the mean squared displacement of the walker grows non-linearly with time in contrast to the…

Heat fluctuations in a harmonic chain of active particles.

- MathematicsPhysical review. E
- 2021

This paper studies the heat fluctuations in a system of interacting active particles, specifically a one-dimensional harmonic chain of N active Ornstein-Uhlenbeck particles, with the chain ends connected to heat baths of different temperatures.

Single-file dynamics of colloids in circular channels: Time scales, scaling laws and their universality

- PhysicsPhysical Review Research
- 2021

Alejandro Villada-Balbuena, 2, ∗ Antonio Ortiz-Ambriz, 4, 5 Pavel Castro-Villarreal, Pietro Tierno, 4, 5 Ramón Castañeda-Priego, and José Miguel Méndez-Alcaraz Condensed Matter Physics Laboratory,…

Time-dependent properties of interacting active matter: Dynamical behavior of one-dimensional systems of self-propelled particles

- Physics
- 2020

We study an interacting high-density one-dimensional system of self-propelled particles described by the Active Ornstein-Uhlenbeck particle (AOUP) model where, even in the absence of alignment…

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