Affordable Access

Publisher Website

Dynamics of rigidly rotating spirals under periodic modulation of excitability

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
416
Identifiers
DOI: 10.1016/j.cplett.2005.09.108

Abstract

Abstract The dynamics of rigidly rotating spiral waves under periodic modulation of excitability is studied experimentally in the photosensitive Belousov–Zhabotinsky reaction. The experiments of sinusoidal and pulsatory modulation reveal that the motion of the spiral tips can be forced to describe a wide range of cycloidal trajectories, depending strongly on the modulation period. The results are complemented with numerical simulations and discussed in the framework of the kinematical theory. We found that the critical parameter for a linear resonance drift under the periodic modulation is not only ‘the modulation period’, as reported earlier, but also the amplitude and duration of modulation.

There are no comments yet on this publication. Be the first to share your thoughts.