Abstract
This is a report on experimental observations of phase bubbles, simply closed boundaries between domains oscillating 2π out of phase, associated with period-2 oscillatory traveling waves in a Belousov-Zhabotinsky reaction-diffusion system. The bubbles nucleate spontaneously through a fast localized phase slip, drift radially away from a neighboring spiral wave core in an oscillatory fashion, and gradually shrink to disappear. Their oscillatory drift along the radial direction is a consequence of "period adaptation," while their lateral shrinkage is an attribute of local curvature. Similar dynamic structures can be reproduced in a simple, three-species reaction-diffusion model that supports period-2 oscillatory wave trains.
Original language | English |
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Article number | 068302 |
Journal | Physical review letters |
Volume | 100 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2008 Feb 13 |
ASJC Scopus subject areas
- General Physics and Astronomy