Abstract
While the existence of polar ordered states in active systems is well established, the dynamics of the self-assembly processes are still elusive. We study a lattice gas model of self-propelled elongated particles interacting through excluded volume and alignment interactions, which shows a phase transition from an isotropic to a polar ordered state. By analyzing the ordering process we find that the transition is driven by the formation of a critical nucleation cluster and a subsequent coarsening process. Moreover, the time to establish a polar ordered state shows a power-law divergence.
Dokumententyp: | Zeitschriftenartikel |
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Publikationsform: | Publisher's Version |
Fakultät: | Physik |
Themengebiete: | 500 Naturwissenschaften und Mathematik > 530 Physik |
URN: | urn:nbn:de:bvb:19-epub-16088-3 |
ISSN: | 1539-3755 |
Ort: | ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA |
Sprache: | Englisch |
Dokumenten ID: | 16088 |
Datum der Veröffentlichung auf Open Access LMU: | 26. Jul. 2013, 12:39 |
Letzte Änderungen: | 08. Mai 2024, 08:19 |