期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 13, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.134501
关键词
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资金
- Joint Studies Program (2005-2007)
- JSPS program for research in Japan [S05753]
- CERLA
- Region Nord-Pas de Calais
- FEDER
In spatiotemporal systems with advection, suppression of noise-sustained structures involves questions that are outside of the framework of deterministic dynamical systems control (such as Ott-Grebogi-Yorke-type methods). Here we propose and test an alternate strategy where a nonlocal additive feedback is applied, with the objective to create a new deterministic solution that becomes robust to noise. As a remarkable fact-though the needed parameter perturbations required have essentially a finite size-they turn out to be extraordinarily small in principle: 10(-8) in the free-electron laser experiment presented here.
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