Higher-order topological states that are robust against certain classes of disorder and pinned to lattice corners are now observed in photonics platforms.

中文翻译：

---

角落处的拓扑格子被照亮

现在，在光子学平台中观察到了对某些类型的无序具有鲁棒性并固定在晶格角上的高阶拓扑状态。