Multi-armed spirals and multi-pairs antispirals in spatial rock-paper-scissors games

Luo Luo Jiang, Wen Xu Wang, Ying-Cheng Lai, Xuan Ni

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

We study the formation of multi-armed spirals and multi-pairs antispirals in spatial rock-paper-scissors games with mobile individuals. We discover a set of seed distributions of species, which is able to produce multi-armed spirals and multi-pairs antispirals with a finite number of arms and pairs based on stochastic processes. The joint spiral waves are also predicted by a theoretical model based on partial differential equations associated with specific initial conditions. The spatial entropy of patterns is introduced to differentiate the multi-armed spirals and multi-pairs antispirals. For the given mobility, the spatial entropy of multi-armed spirals is higher than that of single armed spirals. The stability of the waves is explored with respect to individual mobility. Particularly, we find that both two armed spirals and one pair antispirals transform to the single armed spirals. Furthermore, multi-armed spirals and multi-pairs antispirals are relatively stable for intermediate mobility. The joint spirals with lower numbers of arms and pairs are relatively more stable than those with higher numbers of arms and pairs. In addition, comparing to large amount of previous work, we employ the no flux boundary conditions which enables quantitative studies of pattern formation and stability in the system of stochastic interactions in the absence of excitable media.

Original languageEnglish (US)
Pages (from-to)2292-2297
Number of pages6
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume376
Issue number34
DOIs
StatePublished - Jul 9 2012

Keywords

  • Antispiral
  • Nonlinear system
  • Rock-paper-scissors game
  • Spiral

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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