Self-assembly of active attractive spheres

Vasileios Prymidis, Harmen Sielcken, Laura Filion

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We study the self-assembly of a system of self-propelled, Lennard-Jones particles using Brownian dynamics simulations. We examine the state diagrams of the system for different rotational diffusion coefficients of the self-propelled motion of the particles. For fast rotational diffusion, the state diagram exhibits a strong similarity to that of the equilibrium Lennard-Jones fluid. As we decrease the rotational diffusion coefficient, the state diagram is slowly transformed. Specifically, the liquid-gas coexistence region is gradually replaced by a highly dynamic percolating network state. We find significant local alignment of the particles in the percolating network state despite the absence of aligning interactions, and propose a simple mechanism to justify the formation of this novel state.
Original languageEnglish
Pages (from-to)4158-4166
Number of pages9
JournalSoft Matter
Volume11
Issue number21
DOIs
Publication statusPublished - 7 Jun 2015

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