Isotropic-Nematic Transition of Active Brownian Particles

ORAL

Abstract

Using overdamped Brownian dynamics simulations we investigate the isotropic-nematic (IN) tran-
sition of anisotropic, active particles. Using two well-studied model systems (the Gay-Berne potential
and hard spherocylinders) we consistently find that the IN transition moves to higher densities with
increasing activity. The active IN phase boundary separates well-defined nonequilibrium phases and
is not dependent upon the size of the simulation, in contrast to the isotropic-polar boundary, which
occurs at higher activity.

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Presenters

  • Matthias Bott

    Univ of Fribourg-Perolles

Authors

  • Matthias Bott

    Univ of Fribourg-Perolles

  • Rene Wittmann

    Univ of Fribourg-Perolles, University of Fribourg

  • Felix Winterhalter

    Department of Physics, Friedrich-Alexander-University Erlangen-Nuernberg, University Erlangen-Nürnberg

  • Abhinav Sharma

    Faculty for Physics, University of Goettingen, Leibniz-Institut für Polymerforschung Dresden, Leibniz Institut fuer Polymerforschung, Leibniz Institute for Polymer Research

  • Matthieu Marechal

    Institut für Theoretische Physik, Universität Erlangen-Nürnberg, University Erlangen-Nürnberg, Institut für Theoretische Physik, Friedrich-Alexander-Universität Erlangen-Nürnberg

  • Joseph Brader

    Department of Physics, University of Fribourg, Physics, University of Fribourg, Univ of Fribourg-Perolles, University of Fribourg