70 citations · 72 across the 4 of their papers we have counts for
Showing 2021Show all
2 papers · 1 filter
physics.optics2021★ 2 cited
Observation of Square-Root Higher-Order Topological States in Photonic Waveguide Arrays
Juan Kang, Tao Liu, Mou Yan +7
Recently, high-order topological insulators (HOTIs), accompanied by topologically nontrivial boundary states with codimension larger than one, have been extensively explored becaus…
cond-mat.mes-hall2021★ 70 cited
Higher-Order Weyl-Exceptional-Ring Semimetals
Tao Liu, James Jun He, Zhongmin Yang +1
For first-order topological semimetals, non-Hermitian perturbations can drive the Weyl nodes into Weyl exceptional rings having multiple topological structures and no Hermitian cou…