Solvable Model of Spiral Wave Chimeras
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Solvable Model of Spiral Wave Chimeras. / Martens, Erik Andreas; Laing, Carlo R.; Strogatz, Steven H.
In: Physical Review Letters, Vol. 104, No. 4, 01.01.2010, p. 044101.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Solvable Model of Spiral Wave Chimeras
AU - Martens, Erik Andreas
AU - Laing, Carlo R.
AU - Strogatz, Steven H.
PY - 2010/1/1
Y1 - 2010/1/1
N2 - 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.
AB - 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.
KW - Chimera states,Kuramoto model,Spiral waves
U2 - 10.1103/PhysRevLett.104.044101
DO - 10.1103/PhysRevLett.104.044101
M3 - Journal article
VL - 104
SP - 044101
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 4
ER -
ID: 71128838