492 citations · 4.1k across the 54 of their papers we have counts for
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Non-Hermitian boundary spectral winding
Zuxuan Ou, Yucheng Wang, Linhu Li
Spectral winding of complex eigenenergies represents a topological aspect unique in non-Hermitian systems, which vanishes in one-dimensional (1D) systems under the open boundary co…
Tunable symmetry-protected higher-order topological states with fermionic atoms in bilayer optical lattices
Zhoutao Lei, Linhu Li, Yuangang Deng
Higher-order topological states that possess gapped bulk energy bands and exotic topologically protected boundary states with at least two dimension lower than the bulk have signif…
Topological classification of Higher-order topological phases with nested band inversion surfaces
Zhoutao Lei, Yuangang Deng, Linhu Li
Higher-order topological phases (HOTPs) hold gapped bulk bands and topological boundary states localized in boundaries with codimension higher than one. In this paper, we provide a…
Anomalous Floquet non-Hermitian skin effect in a ring resonator lattice
He Gao, Haoran Xue, Zhongming Gu +6
We present a one-dimensional coupled ring resonator lattice exhibiting a variant of the non- Hermitian skin effect (NHSE) that we call the anomalous Floquet NHSE. Unlike existing a…
Direction reversal of non-Hermitian skin effect via coherent coupling
Linhu Li, Wei Xin Teo, Sen Mu +1
Absolute negative mobility (ANM) in nonequilibrium systems depicts the possibility of particles propagating toward the opposite direction of an external force. We uncover in this w…
Edge magnetism in transition metal dichalcogenide nanoribbons: Mean field theory and determinant quantum Monte Carlo
Francisco M. O. Brito, Linhu Li, João M. V. P. Lopes +1
Edge magnetism in zigzag transition metal dichalcogenide nanoribbons is studied using a three-band tight-binding model with local electron-electron interactions. Both mean field th…
Designing non-Hermitian real spectra through electrostatics
Russell Yang, Jun Wei Tan, Tommy Tai +4
Non-hermiticity presents a vast newly opened territory that harbors new physics and applications such as lasing and sensing. However, only non-Hermitian systems with real eigenener…