Pattern phase transitions of self-propelled particles: Gases, crystals, liquids, and mills

Zhao Cheng, Zhiyong Chen, T. Vicsek, Duxin Chen, Hai Tao Zhang

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

To understand the collective behaviors of biological swarms, flocks, and colonies, we investigated the non-equilibrium dynamic patterns of self-propelled particle systems using statistical mechanics methods and H-stability analysis of Hamiltonian systems. By varying the individual vision range, we observed phase transitions between four phases, i.e., gas, crystal, liquid, and mill-liquid coexistence patterns. In addition, by varying the inter-particle force, we detected three distinct milling sub-phases, i.e., ring, annulus, and disk. Based on the coherent analysis for collective motions, one may predict the stability and adjust the morphology of the phases of self-propelled particles, which has promising potential applications in natural self-propelled particles and artificial multi-agent systems.

Original languageEnglish
Article number103005
JournalNew Journal of Physics
Volume18
Issue number10
DOIs
Publication statusPublished - Oct 1 2016

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liquid crystals
gases
annuli
statistical mechanics
vapor phases
rings
liquids

Keywords

  • collective motions
  • complex networks
  • Vicsek model

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Pattern phase transitions of self-propelled particles : Gases, crystals, liquids, and mills. / Cheng, Zhao; Chen, Zhiyong; Vicsek, T.; Chen, Duxin; Zhang, Hai Tao.

In: New Journal of Physics, Vol. 18, No. 10, 103005, 01.10.2016.

Research output: Contribution to journalArticle

Cheng, Zhao ; Chen, Zhiyong ; Vicsek, T. ; Chen, Duxin ; Zhang, Hai Tao. / Pattern phase transitions of self-propelled particles : Gases, crystals, liquids, and mills. In: New Journal of Physics. 2016 ; Vol. 18, No. 10.
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