Q
Qi-Bo Zeng
Researcher at Tsinghua University
Publications - 28
Citations - 669
Qi-Bo Zeng is an academic researcher from Tsinghua University. The author has contributed to research in topics: Anderson localization & Quasiperiodic function. The author has an hindex of 11, co-authored 19 publications receiving 389 citations. Previous affiliations of Qi-Bo Zeng include Capital Normal University.
Papers
More filters
Journal ArticleDOI
Topological phases in non-Hermitian Aubry-André-Harper models
Qi-Bo Zeng,Yan-Bin Yang,Yong Xu +2 more
TL;DR: In this article, a one-dimensional non-Hermitian Aubry-Andr\'e-Harper (AAH) model with imaginary periodic or quasiperiodic modulations is studied.
Journal ArticleDOI
Winding numbers and generalized mobility edges in non-Hermitian systems
Qi-Bo Zeng,Yong Xu +1 more
TL;DR: In this article, a self-dual symmetry was proposed to determine the Anderson localization in non-Hermitian quasiperiodic lattices. But the authors showed that the mobility edges in such systems are of topological nature, due to the energy spectra for the extended states and localized states displaying different structures.
Journal ArticleDOI
Anderson localization in the Non-Hermitian Aubry-André-Harper model with physical gain and loss
Qi-Bo Zeng,Shu Chen,Rong Lü +2 more
TL;DR: In this article, the authors investigated the Anderson localization in non-Hermitian Aubry-Andr\'e-Harper (AAH) models with imaginary potentials added to lattice sites to represent the physical gain and loss during the interacting processes between the system and environment.
Journal ArticleDOI
Higher-order topological insulators and semimetals in generalized Aubry-André-Harper models
Qi-Bo Zeng,Yan-Bin Yang,Yong Xu +2 more
TL;DR: In this article, a two-dimensional higher-order topological insulator with chiral symmetry based on the Aubry-Andr\'e-Harper model was constructed and the coexistence of zero-energy and nonzero-energy corner-localized modes was explored.
Journal ArticleDOI
Generalized Aubry-André-Harper model with p -wave superconducting pairing
Qi-Bo Zeng,Shu Chen,Rong Lü +2 more
TL;DR: In this article, a generalized Aubry-Andr\'e-Harper (AAH) model with superconducting pairing was investigated, where both the hopping amplitudes between the nearest neighbor lattice sites and the on-site potentials in this system were modulated by a cosine function with a periodicity of $1/ε 1/ε 2.