Phase behaviour and dynamics of three-dimensional active dumbbell systems
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.
Cite
@article{arxiv.2308.00532,
title = {Phase behaviour and dynamics of three-dimensional active dumbbell systems},
author = {C. B. Caporusso and G. Negro and A. Suma and P. Digregorio and L. N. Carenza and G. Gonnella and L. F. Cugliandolo},
journal= {arXiv preprint arXiv:2308.00532},
year = {2024}
}
Comments
15 pages, 11 figures