论文标题
光纤环中的拓扑浮子接口状态
Topological Floquet interface states in optical fibre loops
论文作者
论文摘要
我们通过实验观察到（1+1） - 维离散光子步行中的一对拓扑异常的浮子界面状态。我们明确验证了这些状态的鲁棒性，以违反涉及系统的手性对称性的局部静态扰动，以及它们针对非平稳扰动的脆弱性。步行是基于脉冲在一对具有不同长度的耦合纤维环中传播的脉冲，并具有动态可变的相互耦合。拓扑界面是通过一个环中的相位调制创建的，该循环允许在接口处进行异常的浮雕拓扑转换。
We experimentally observe a coexisting pair of topological anomalous Floquet interface states in a (1+1)-dimensional Discrete Photon Walk. We explicitly verify the robustness of these states against local static perturbations respecting chiral symmetry of the system, as well as their vulnerability against non-stationary perturbations. The walk is implemented based on pulses propagating in a pair of coupled fibre loops of dissimilar lengths with dynamically variable mutual coupling. The topological interface is created via phase modulation in one of the loops, which allows for an anomalous Floquet topological transition at the interface.
