491 citations · 1.3k across the 13 of their papers we have counts for
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cond-mat.mes-hall2018★ 491 cited
Second-Order Topological Phases in Non-Hermitian Systems
Tao Liu, Yu-Ran Zhang, Qing Ai +4
A -dimensional second-order topological insulator (SOTI) can host topologically protected -dimensional gapless boundary modes. Here we show that a 2D non-Hermitian SOTI…
physics.optics2018★ 1 cited
Broad-Band Negative Refraction via Simultaneous Multi-Electron Transitions
Jing-Jing Cheng, Ying-Qi Chu, Tao Liu +4
We analyze different factors which influence the negative refraction in solids and multi-atom molecules. We find that this negative refraction is significantly influenced by simult…
cond-mat.mes-hall2018★ 169 cited
Majorana corner states in a two-dimensional magnetic topological insulator on a high-temperature superconductor
Tao Liu, James Jun He, Franco Nori
Conventional -dimensional topological superconductors (TSCs) have protected gapless -dimensional boundary states. In contrast to this, second-order TSCs are characteriz…