Spiral diffusion of rotating self-propellers with stochastic perturbation

Amir Nourhani, Stephen J. Ebbens, John G. Gibbs, Paul E. Lammert

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Translationally diffusive behavior arising from the combination of orientational diffusion and powered motion at microscopic scales is a known phenomenon, but the peculiarities of the evolution of expected position conditioned on initial position and orientation have been neglected. A theory is given of the spiral motion of the mean trajectory depending upon propulsion speed, angular velocity, orientational diffusion, and rate of random chirality reversal. We demonstrate the experimental accessibility of this effect using both tadpole-like and Janus sphere dimer rotating motors. Sensitivity of the mean trajectory to the kinematic parameters suggest that it may be a useful way to determine those parameters.

Original languageEnglish (US)
Article number030601
JournalPhysical Review E
Volume94
Issue number3
DOIs
StatePublished - Sep 13 2016

Fingerprint

Stochastic Perturbation
propellers
Rotating
trajectories
Trajectory
Janus
perturbation
Motion
Chirality
Dimer
Angular velocity
propulsion
angular velocity
Reversal
Accessibility
chirality
Kinematics
kinematics
dimers
sensitivity

All Science Journal Classification (ASJC) codes

  • Statistics and Probability
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics

Cite this

Nourhani, Amir ; Ebbens, Stephen J. ; Gibbs, John G. ; Lammert, Paul E. / Spiral diffusion of rotating self-propellers with stochastic perturbation. In: Physical Review E. 2016 ; Vol. 94, No. 3.
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Spiral diffusion of rotating self-propellers with stochastic perturbation. / Nourhani, Amir; Ebbens, Stephen J.; Gibbs, John G.; Lammert, Paul E.

In: Physical Review E, Vol. 94, No. 3, 030601, 13.09.2016.

Research output: Contribution to journalArticle

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