Emergent Collective Phenomena in a Mixture of Hard Shapes through Active Rotation
Engel M, Nguyen NH, Klotsa D, Glotzer SC (2014)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Publication year: 2014
Journal
Publisher: American Physical Society
Book Volume: 112
Journal Issue: 7
DOI: 10.1103/PhysRevLett.112.075701
Abstract
We investigate collective phenomena with rotationally driven spinners of concave shape. Each spinner experiences a constant internal torque in either a clockwise or counterclockwise direction. Although the spinners are modeled as hard, otherwise noninteracting rigid bodies, their active motion induces an effective interaction that favors rotation in the same direction. With increasing density and activity, phase separation occurs via spinodal decomposition, as well as self-organization into rotating crystals. We observe the emergence of cooperative, superdiffusive motion along interfaces, which can transport inactive test particles. Our results demonstrate novel phase behavior of actively rotated particles that is not possible with linear propulsion or in nondriven, equilibrium systems of identical hard particles.
Authors with CRIS profile
Involved external institutions
United States (USA) (US)How to cite
APA:
Engel, M., Nguyen, N.H., Klotsa, D., & Glotzer, S.C. (2014). Emergent Collective Phenomena in a Mixture of Hard Shapes through Active Rotation. Physical Review Letters, 112(7). https://dx.doi.org/10.1103/PhysRevLett.112.075701
MLA:
Engel, Michael, et al. "Emergent Collective Phenomena in a Mixture of Hard Shapes through Active Rotation." Physical Review Letters 112.7 (2014).
BibTeX: Download