Scroll wave filaments terminate in the back of traveling fronts

Tamás Bánsági, Christine Palczewski, Oliver Steinbock

Research output: Contribution to journalArticlepeer-review

9 Citations (SciVal)


Experiments with the 1,4-cyclohexanedione Belousov-Zhabotinsky reaction demonstrate that three-dimensional scroll waves can rotate around filaments that end in the wake of a traveling excitation pulse. The vortex structures nucleate during the collision of three nonrotating excitation pulses. The nucleation process and the wave-termination of filaments are direct consequences of the system's anomalous dispersion relation. Vortex filaments are found to expand with about twice the speed of their anchoring wave fronts. Filament expansion is accompanied by the build-up of phase differences in spiral rotation creating strongly twisted wave structures. Experiments employ optical tomography for the reconstruction of the three-dimensional wave patterns.

Original languageEnglish
Pages (from-to)2492-2497
Number of pages6
JournalJournal of Physical Chemistry A
Issue number13
Early online date3 Mar 2007
Publication statusPublished - 1 Apr 2007

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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