期刊
NATURE PHYSICS
卷 8, 期 9, 页码 658-661出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NPHYS2372
关键词
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资金
- DOD MURI [ONR N000140710734]
- BMBF [01GQ1001B]
- Deutsche Forschungsgemeinschaft [SFB910]
Networks of nonlocally coupled phase oscillators(1) can support chimera states in which identical oscillators evolve into distinct groups that exhibit coexisting synchronous and incoherent behaviours despite homogeneous coupling(2-6). Similar nonlocal coupling topologies implemented in networks of chaotic iterated maps also yield dynamical states exhibiting coexisting spatial domains of coherence and incoherence(7,8). In these discrete-time systems, the phase is not a continuous variable, so these states are generalized chimeras with respect to a broader notion of incoherence. Chimeras continue to be the subject of intense theoretical investigation, but have yet to be realized experimentally(6,9-16). Here we show that these chimeras can be realized in experiments using a liquid-crystal spatial light modulator to achieve optical nonlinearity in a spatially extended iterated map system. We study the coherence-incoherence transition that gives rise to these chimera states through experiment, theory and simulation.
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