Publication: Phase behaviour and dynamics of three-dimensional active dumbbell systems
Program
KU-Authors
KU Authors
Co-Authors
Caporusso, C.B.
Negro, G.
Suma, A.
Digregorio, P.
Gonnella G
Cugliandolo, L.F.
Publication Date
Language
Type
Embargo Status
Journal Title
Journal ISSN
Volume Title
Alternative Title
Abstract
We present a comprehensive numerical study of the phase behavior and dynamics of a three-dimensional active dumbbell system with attractive interactions. We demonstrate that attraction is essential for the system to exhibit nontrivial phases. We construct a detailed phase diagram by exploring the effects of the system's activity, density, and attraction strength. We identify several distinct phases, including a disordered, a gel, and a completely phase-separated phase. Additionally, we discover a novel dynamical phase, that we name percolating network, which is characterized by the presence of a spanning network of connected dumbbells. In the phase-separated phase we characterize numerically and describe analytically the helical motion of the dense cluster.
Source
Publisher
Royal Society of Chemistry
Subject
Active matter, Liquid crystal, Molecular dynamics
Citation
Has Part
Source
Soft Matter
Book Series Title
Edition
DOI
10.1039/d3sm01030a