457 citations · 1.3k across the 31 of their papers we have counts for
7 papers · 1 filter
Time-periodic corner states from Floquet higher-order topology
Weiwei Zhu, Haoran Xue, Jiangbin Gong +2
The recent discoveries of higher-order topological insulators (HOTIs) have shifted the paradigm of topological materials, which was previously limited to topological states at boun…
Vortex states in an acoustic Weyl crystal with a topological lattice defect
Qiang Wang, Yong Ge, Hong-xiang Sun +6
We design and implement a three dimensional acoustic Weyl metamaterial hosting robust modes bound to a one-dimensional topological lattice defect. The modes are related to topologi…
Topological slow light via coupling chiral edge modes with flat bands
Letian Yu, Haoran Xue, Baile Zhang
Chiral edge modes in photonic topological insulators host great potential to realize slow-light waveguides with topological protection. Increasing the winding of the chiral edge mo…
Observation of photonic antichiral edge states
Peiheng Zhou, Gui-Geng Liu, Yihao Yang +6
Chiral edge states are a hallmark feature of two-dimensional topological materials. Such states must propagate along the edges of the bulk either clockwise or counterclockwise, and…
Non-Hermitian route to higher-order topology in an acoustic crystal
He Gao, Haoran Xue, Zhongming Gu +3
Topological phases of matter are classified based on their Hermitian Hamiltonians, whose real-valued dispersions together with orthogonal eigenstates form nontrivial topology. In t…
Observation of Protected Photonic Edge States Induced By Real-Space Topological Lattice Defects
Qiang Wang, Haoran Xue, Baile Zhang +1
Topological defects (TDs) in crystal lattices are elementary lattice imperfections that cannot be removed by local perturbations, due to their real space topology. We show that add…