Order-disorder phase transition in a chaotic system

Rinto Anugraha, Koyo Tamura, Yoshiki Hidaka, Noriko Oikawa, Shoichi Kai

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


For soft-mode turbulence, which is essentially the spatiotemporal chaos caused by the nonlinear interaction between convective modes and Goldstone modes in electroconvection of homeotropic nematics, a type of order-disorder phase transition was revealed, in which a new order parameter was introduced as pattern ordering. We calculated the spatial correlation function and the anisotropy of the convective patterns as a 2D XY system because the convective wave vector could freely rotate in the homeotropic system. We found the hidden order in the chaotic patterns observed beyond the Lifshitz frequency fL, and a transition from a disordered to a hidden ordered state occurred at the fL with the increase of the frequency of the applied voltages.

Original languageEnglish
Article number164503
JournalPhysical Review Letters
Issue number16
Publication statusPublished - Apr 24 2008

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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