Formation of a Spiraling Line Defect and Its Meandering Transition in a Period-2 Medium

Jin Sung Park, Kyoung Jin Lee

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The instability of a period-1 spiral wave resulting in a period-2 spiral wave with a line defect is investigated for the first time in a laboratory system. At the very onset the transition proceeds by an emergence of a spiraling line defect, “breathing” intermittently while retaining its symmetry of a period-1 spiral wave. With a further change in a control parameter, the line defect undergoes a meandering transition producing a compound tip trajectory, following a dynamic shape transition. The observed transitions have a strong analogy to the phase synchronization transition of two coupled nonlinear oscillators and the meandering transition of a period-1 spiral wave.

Original languageEnglish
Number of pages1
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 2002 Jan 1


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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