Haugland Sindre W, Schmidt Lennart, Krischer Katharina
Physik-Department, Nonequilibrium Chemical Physics, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany.
Institute for Advanced Study - Technische Universität München, Lichtenbergstr. 2a, D-85748 Garching, Germany.
Sci Rep. 2015 Apr 30;5:9883. doi: 10.1038/srep09883.
Oscillatory media can exhibit the coexistence of synchronized and desynchronized regions, so-called chimera states, for uniform parameters and symmetrical coupling. In a phase-balanced chimera state, where the totals of synchronized and desynchronized regions, respectively, are of the same size, the symmetry of the system predicts that interchanging both phases still gives a solution to the underlying equations. We observe this kind of interchange as a self-emerging phenomenon in an oscillatory medium with nonlinear global coupling. An interplay between local and global couplings renders the formation of these alternating chimeras possible.
振荡介质在参数均匀且耦合对称的情况下，能够呈现同步区域和非同步区域共存的状态，即所谓的奇异态。在相位平衡的奇异态中，同步区域和非同步区域的总量分别相同，系统的对称性预示着交换两个相位仍然能得到基础方程的一个解。我们在具有非线性全局耦合的振荡介质中观察到这种交换是一种自发现象。局部耦合和全局耦合之间的相互作用使得这些交替奇异态的形成成为可能。
