A kinetic-Monte Carlo perspective on active matter

Beitrag in einer Fachzeitschrift

Details zur Publikation

Autor(en): Klamser JU, Kapfer S, Krauth W
Zeitschrift: Journal of Chemical Physics
Jahr der Veröffentlichung: 2019
Band: 150
Heftnummer: 14
ISSN: 0021-9606
eISSN: 1089-7690


We study non-equilibrium phases for interacting two-dimensional self-propelled particles with isotropic pair-wise interactions using a persistent kinetic Monte Carlo approach. We establish the quantitative phase diagram, including the motility-induced phase separation (MIPS) that is a commonly observed collective phenomenon in active matter. In addition, we demonstrate for several different potential forms the presence of two-step melting, with an intermediate hexatic phase, in regions far from equilibrium. Increased activity can melt a two-dimensional solid and the melting lines remain disjoint from MIPS. We establish this phase diagram for a range of the inter-particle potential stiffnesses and identify the MIPS phase even in the hard-disk limit. We establish that the full description of the phase behavior requires three independent control parameters.

FAU-Autoren / FAU-Herausgeber

Kapfer, Sebastian
Lehrstuhl für Theoretische Physik

Autor(en) der externen Einrichtung(en)
University of Paris 6 - Pierre et Marie Curie / Université Paris VI Pierre et Marie Curie (UPMC)


Klamser, J.U., Kapfer, S., & Krauth, W. (2019). A kinetic-Monte Carlo perspective on active matter. Journal of Chemical Physics, 150(14). https://dx.doi.org/10.1063/1.5085828

Klamser, Juliane U., Sebastian Kapfer, and Werner Krauth. "A kinetic-Monte Carlo perspective on active matter." Journal of Chemical Physics 150.14 (2019).


Zuletzt aktualisiert 2019-30-04 um 16:08