Novel type of amplitude spiral wave in a two-layer system
Interaction of spiral waves in a two-layer system described by a model of coupled complex Ginzburg-Landau equations with negative-feedback couplings ε(1) and ε(2) is studied. Synchronization of two spiral waves can be broadly found if ε(1)+ε(2) is sufficiently large. Prior to the synchronization, un...
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| Published in | Chaos (Woodbury, N.Y.) Vol. 20; no. 4; p. 043132 |
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| Main Authors | , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
01.12.2010
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| Online Access | Get more information |
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| Summary: | Interaction of spiral waves in a two-layer system described by a model of coupled complex Ginzburg-Landau equations with negative-feedback couplings ε(1) and ε(2) is studied. Synchronization of two spiral waves can be broadly found if ε(1)+ε(2) is sufficiently large. Prior to the synchronization, under the condition of strongly asymmetric coupling (∣ε(1)-ε(2)∣≫0), a novel type of spiral wave, amplitude spiral wave, exists in the driven system. The pattern of amplitude spiral wave shows the spiral in the amplitude and without a singularity point (tip), compared to usual spiral waves known for phase with amplitude uniform far away from tips and rotating around tips. |
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| ISSN: | 1089-7682 |
| DOI: | 10.1063/1.3526965 |