Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA.
Northwestern Institute on Complex Systems, Northwestern University, Evanston, Illinois 60208, USA.
Phys Rev Lett. 2021 Mar 5;126(9):094101. doi: 10.1103/PhysRevLett.126.094101.
Chimera states have attracted significant attention as symmetry-broken states exhibiting the unexpected coexistence of coherence and incoherence. Despite the valuable insights gained from analyzing specific systems, an understanding of the general physical mechanism underlying the emergence of chimeras is still lacking. Here, we show that many stable chimeras arise because coherence in part of the system is sustained by incoherence in the rest of the system. This mechanism may be regarded as a deterministic analog of noise-induced synchronization and is shown to underlie the emergence of strong chimeras. These are chimera states whose coherent domain is formed by identically synchronized oscillators. Recognizing this mechanism offers a new meaning to the interpretation that chimeras are a natural link between coherence and incoherence.
嵌合体状态作为打破对称的状态引起了人们的极大关注，因为它们表现出了出乎意料的相干性和非相干性的共存。尽管从分析特定系统中获得了有价值的见解，但对于产生嵌合体的一般物理机制仍缺乏了解。在这里，我们表明，许多稳定的嵌合体的出现是因为系统的一部分的相干性是由系统的其余部分的非相干性维持的。这种机制可以被视为噪声诱导同步的确定性类似物，并被证明是强嵌合体出现的基础。这些是相干域由完全同步的振荡器形成的强嵌合体。认识到这种机制为解释嵌合体是相干性和非相干性之间的自然联系提供了新的意义。
