Active Brownian particle under stochastic orientational resetting

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Yanis Baouche - , Max-Planck-Institute for the Physics of Complex Systems (Author)
  • Thomas Franosch - , University of Innsbruck (Author)
  • Matthias Meiners - , Justus Liebig University Giessen (Author)
  • Christina Kurzthaler - , Max-Planck-Institute for the Physics of Complex Systems, Center for Systems Biology Dresden (CSBD), TUD Dresden University of Technology, Clusters of Excellence PoL: Physics of Life (Author)

Abstract

We employ renewal processes to characterize the spatiotemporal dynamics of an active Brownian particle under stochastic orientational resetting. By computing the experimentally accessible intermediate scattering function (ISF) and reconstructing the full time-dependent distribution of the displacements, we study the interplay of rotational diffusion and resetting. The resetting process introduces a new spatiotemporal regime reflecting the directed motion of agents along the resetting direction at large length scales, which becomes apparent in an imaginary part of the ISF. We further derive analytical expressions for the low-order moments of the displacements and find that the variance displays an effective diffusive regime at long times, which decreases for increasing resetting rates. At intermediate times the dynamics are characterized by a negative skewness as well as a non-zero non-Gaussian parameter.

Details

Original languageEnglish
Article number073041
JournalNew journal of physics
Volume26
Issue number7
Publication statusPublished - 1 Jul 2024
Peer-reviewedYes

Keywords

ASJC Scopus subject areas

Keywords

  • statistical physics of active particles, stochastic resetting, transport properties of microswimmers