标题： 连续介质中的混沌态：存在性与独特性 显示英文标题

标题： Chimera States in Continuous Media: Existence and Distinctness

摘要： 奇态状态的定义性质是，在结构和空间上均一的系统中，有序和无序区域共存。 最近认识到这种状态可能在振荡器网络中很常见，这引发了关于类似现象是否可能在连续介质中出现的问题。 在这里，我们表明，即使耦合是严格局部的，如许多流体和模式形成介质中的情况，奇态状态也可以存在于连续系统中。 使用复数桂-兰道方程作为模型系统，我们表征了由冻结螺旋结构的有序区域和振幅湍流的无序区域组成的奇态状态。 我们表明，在这种情况下，与离散网络系统相反，局部耦合场的波动在限制有序区域方面起着关键作用。 我们认为这些发现为流体系统中可能存在的有序和无序共存的新形式提供了新的见解。 显示英文摘要

摘要： The defining property of chimera states is the coexistence of coherent and incoherent domains in systems that are structurally and spatially homogeneous. The recent realization that such states might be common in oscillator networks raises the question of whether an analogous phenomenon can occur in continuous media. Here, we show that chimera states can exist in continuous systems even when the coupling is strictly local, as in many fluid and pattern forming media. Using the complex Ginzburg-Landau equation as a model system, we characterize chimera states consisting of a coherent domain of a frozen spiral structure and an incoherent domain of amplitude turbulence. We show that in this case, in contrast with discrete network systems, fluctuations in the local coupling field play a crucial role in limiting the coherent regions. We suggest these findings shed light on new possible forms of coexisting order and disorder in fluid systems.