Crystallization and flow in active patch systems

Autor(en)

Jaffar Hasnain, Georg Menzl, Swetlana Jungblut, Christoph Dellago

Abstrakt

Based upon recent experiments in which Janus particles are made into active swimmers by illuminating them with laser light, we explore the effect of applying a light pattern on the sample, thereby creating activity inducing zones or active patches. We simulate a system of interacting Brownian diffusers that become active swimmers when moving inside an active patch and analyze the structure and dynamics of the ensuing stationary state. We find that, in some respects, the effect of spatially inhomogeneous activity is qualitatively similar to a temperature gradient. For asymmetric patches, however, this analogy breaks down because the ensuing stationary state is specific to partial active motion.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

University of California, Berkeley

Journal

Soft Matter

Band

13

Seiten

930-936

Anzahl der Seiten

7

ISSN

1744-683X

DOI

https://doi.org/10.1039/c6sm01898j

Publikationsdatum

2017

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Allgemeine Chemie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/97aeb50d-f0bf-46a0-9dd2-f290ab41ebad