Drift of rigidly rotating spirals under periodic and noisy illuminations

Hong Zhang*, Ning Jie Wu, He Ping Ying, Gang Hu, Bambi Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


Under the weak deformation approximation, the motion of rigidly rotating spirals induced by periodic and noisy illuminations are investigated analytically. We derive an approximate but explicit formula of the spiral drift velocity directly from the original reaction-diffusion equation. With this formula we are able to explain the main features in the periodic and noisy illuminations induced spiral drift problems. Numerical computations of the Oregonator model are carried out as well, and they agree with the main qualitative conclusions of our analytical results.

Original languageEnglish
Pages (from-to)7276-7280
Number of pages5
JournalJournal of Chemical Physics
Issue number15
Publication statusPublished - 15 Oct 2004

Scopus Subject Areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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