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Title: Aging and rejuvenation of active matter under topological constraints

The coupling of active, self-motile particles to topological constraints can give rise to novel nonequilibrium dynamical patterns that lack any passive counterpart. Here we study the behavior of self-propelled rods confined to a compact spherical manifold by means of Brownian dynamics simulations. We establish the state diagram and find that short active rods at sufficiently high density exhibit a glass transition toward a disordered state characterized by persistent self-spinning motion. By periodically melting and revitrifying the spherical spinning glass, we observe clear signatures of time-dependent aging and rejuvenation physics. We quantify the crucial role of activity in these nonequilibrium processes, and rationalize the aging dynamics in terms of an absorbing-state transition toward a more stable active glassy state. In conclusion, our results demonstrate both how concepts of passive glass phenomenology can carry over into the realm of active matter, and how topology can enrich the collective spatiotemporal dynamics in inherently non-equilibrium systems.
Authors:
 [1] ;  [2] ;  [3]
  1. Heinrich-Heine Univ. Dusseldorf, Dusseldorf (Germany); Eindhoven Univ. of Technology, Eindhoven (The Netherlands)
  2. Argonne National Lab. (ANL), Argonne, IL (United States)
  3. Heinrich-Heine Univ. Dusseldorf, Dusseldorf (Germany)
Publication Date:
Grant/Contract Number:
AC02-06CH11357
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 7; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
German Research Foundation (DFG); Alexander von Humboldt Foundation; USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1375805

Janssen, Liesbeth M. C., Kaiser, Andreas, and Lowen, Hartmut. Aging and rejuvenation of active matter under topological constraints. United States: N. p., Web. doi:10.1038/s41598-017-05569-6.
Janssen, Liesbeth M. C., Kaiser, Andreas, & Lowen, Hartmut. Aging and rejuvenation of active matter under topological constraints. United States. doi:10.1038/s41598-017-05569-6.
Janssen, Liesbeth M. C., Kaiser, Andreas, and Lowen, Hartmut. 2017. "Aging and rejuvenation of active matter under topological constraints". United States. doi:10.1038/s41598-017-05569-6. https://www.osti.gov/servlets/purl/1375805.
@article{osti_1375805,
title = {Aging and rejuvenation of active matter under topological constraints},
author = {Janssen, Liesbeth M. C. and Kaiser, Andreas and Lowen, Hartmut},
abstractNote = {The coupling of active, self-motile particles to topological constraints can give rise to novel nonequilibrium dynamical patterns that lack any passive counterpart. Here we study the behavior of self-propelled rods confined to a compact spherical manifold by means of Brownian dynamics simulations. We establish the state diagram and find that short active rods at sufficiently high density exhibit a glass transition toward a disordered state characterized by persistent self-spinning motion. By periodically melting and revitrifying the spherical spinning glass, we observe clear signatures of time-dependent aging and rejuvenation physics. We quantify the crucial role of activity in these nonequilibrium processes, and rationalize the aging dynamics in terms of an absorbing-state transition toward a more stable active glassy state. In conclusion, our results demonstrate both how concepts of passive glass phenomenology can carry over into the realm of active matter, and how topology can enrich the collective spatiotemporal dynamics in inherently non-equilibrium systems.},
doi = {10.1038/s41598-017-05569-6},
journal = {Scientific Reports},
number = 1,
volume = 7,
place = {United States},
year = {2017},
month = {7}
}