延迟可激发光学系统中的脉冲定时对称性破缺
Pulse-timing symmetry breaking in an excitable optical system with delay
摘要：
具有延迟反馈的可激发系统在生物学、神经科学和光学等领域都很重要。它们在反馈回路中维持具有不同数量的等距脉冲的多稳态脉冲制度。实验和理论上，我们报告的脉冲定时对称性破缺的光学系统中的这些制度。分叉分析揭示，这起源于共振现象，并且在参数空间的大区域中，分叉破裂状态是稳定的。这些结果在光子学中具有影响，例如光学计算和多功能光脉冲源。
英文摘要：
Excitable systems with delayed feedback are important in areas from biology to neuroscience and optics. They sustain multistable pulsing regimes with different number of equidistant pulses in the feedback loop. Experimentally and theoretically, we report on the pulse-timing symmetry breaking of these regimes in an optical system. A bifurcation analysis unveils that this originates in a resonance phenomenon and that symmetry-broken states are stable in large regions of the parameter space. These results have impact in photonics for e.g. optical computing and versatile sources of optical pulses.
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