期刊
PHYSICAL REVIEW E
卷 86, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.86.016208
关键词
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资金
- National Nature Science Foundation of China [10975117]
- Program for New Century Excellent Talents in University
- Fundamental Research Funds for the Central Universities
- Soft Matter Research Center of Zhejiang University
We present numerical evidence that, in the presence of a suitable electric field, an isolated broken plane wave retracting originally in subexcitable media can propagate continuously and eventually evolve into a rotating spiral. Simulations for the FitzHugh-Nagumo, the Barkley, and the Oregonator models are carried out and the same electric-field-sustained spiral phenomena are observed. Semianalytical results in the framework of a kinematic theory are quantitatively consistent with the numerical results.
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