Sammanfattning
Spiral waves are ubiquitous in two-dimensional systems of chemical or biological oscillators coupled locally by diffusion. At the center of such spirals is a phase singularity, a topological defect where the oscillator amplitude drops to zero. But if the coupling is nonlocal, a new kind of spiral can occur, with a circular core consisting of desynchronized oscillators running at full amplitude. Here, we provide the first analytical description of such a spiral wave chimera and use perturbation theory to calculate its rotation speed and the size of its incoherent core.
Originalspråk | engelska |
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Artikelnummer | 044101 |
Tidskrift | Physical Review Letters |
Volym | 104 |
Nummer | 4 |
DOI | |
Status | Published - 2010 jan. 29 |
Externt publicerad | Ja |
Bibliografisk information
Copyright:Copyright 2010 Elsevier B.V., All rights reserved.
Ämnesklassifikation (UKÄ)
- Matematik
- Fysik