Nonequilibrium steady states, coexistence, and criticality in driven quasi-two-dimensional granular matter

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Schindler T, Kapfer S
Zeitschrift: Physical Review E
Jahr der Veröffentlichung: 2019
Band: 99
Heftnummer: 2
ISSN: 2470-0045


Abstract

Nonequilibrium steady states of vibrated inelastic frictionless spheres are investigated in quasi-twodimensional confinement via molecular dynamics simulations. The phase diagram in the density-amplitude plane exhibits a fluidlike disordered and an ordered phase with threefold symmetry, as well as phase coexistence between the two. A dynamical mechanism exists that brings about metastable traveling clusters and at the same time stable clusters with anisotropic shapes at low vibration amplitude. Moreover, there is a square bilayer state which is connected to the fluid by BKTHNY-type two-step melting with an intermediate tetratic phase. The critical behavior of the two continuous transitions is studied in detail. For the fluid-tetratic transition, critical exponents of (gamma) over tilde = 1.73, eta(4)approximate to 1/4, and z = 2.05 are obtained.


FAU-Autoren / FAU-Herausgeber

Kapfer, Sebastian
Lehrstuhl für Theoretische Physik
Schindler, Thomas
Lehrstuhl für Theoretische Physik


Zitierweisen

APA:
Schindler, T., & Kapfer, S. (2019). Nonequilibrium steady states, coexistence, and criticality in driven quasi-two-dimensional granular matter. Physical Review E, 99(2). https://dx.doi.org/10.1103/PhysRevE.99.022902

MLA:
Schindler, Thomas, and Sebastian Kapfer. "Nonequilibrium steady states, coexistence, and criticality in driven quasi-two-dimensional granular matter." Physical Review E 99.2 (2019).

BibTeX: 

Zuletzt aktualisiert 2019-25-02 um 08:29