论文标题
在三个维度的自定位拓扑状态
Self-localized topological states in three dimensions
论文作者
论文摘要
三维（3D）拓扑材料表现出比其低维度对应物更丰富的现象。在这里，我们提出了3D非线性光子Chern绝缘子中的自定位拓扑状态（即拓扑孤子）。尽管在所有3D中都处于散装和自我的量化，但由于潜在的拓扑结构，高对称点K和K的拓扑孤子在同一方向上旋转。具体而言，在可饱和的非线性下，孤子在广泛的频率范围内保持稳定。我们的结果突出了拓扑和非线性如何相互作用，并可以扩展到其他3D拓扑系统。
Three-dimensional (3D) topological materials exhibit much richer phenomena than their lower-dimensional counterparts. Here, we propose self-localized topological states (i.e., topological solitons) in a 3D nonlinear photonic Chern insulator. Despite being in the bulk and self-localized in all 3D, the topological solitons at high-symmetry points K and K' rotate in the same direction, due to the underlying topology. Specifically, under the saturable nonlinearity the solitons are stable over a broad frequency range. Our results highlight how topology and nonlinearity interact with each other and can be extended to other 3D topological systems.
