126 citations · 553 across the 19 of their papers we have counts for
19 papers
Asymmetric and chiral dynamics of two-component anyons with synthetic gauge flux
Rui-Jie Chen, Ying-Xin Huang, Guo-Qing Zhang +1
In this work, we investigate the non-equilibrium dynamics in a one-dimensional two-component anyon-Hubbard model, which can be mapped to an extended Bose-Hubbard ladder with densit…
Mobility rings in a non-Hermitian non-Abelian quasiperiodic lattice
Rui-Jie Chen, Guo-Qing Zhang, Zhi Li +1
We study localization and topological properties in spin-1/2 non-reciprocal Aubry-André chain with SU(2) non-Abelian artificial gauge fields. The results reveal that, different fro…
Critical properties in the non-Hermitian Aubry-Andre-Stark model
Ji-Long Dong, En-Wen Liang, Shi-Yang Liu +3
We explore the critical properties of the localization transition in the non-Hermitian Aubry-Andre-Stark (AAS) model with quasiperiodic and Stark potentials, where the non-Hermitic…
Antichiral and trap-skin dynamics in a nonreciprocal bosonic two-leg ladder with artificial magnetic flux
Rui-Jie Chen, Guo-Qing Zhang, Zhi Li +1
Non-Hermiticity and synthetic gauge fields play two fundamental roles in engineering exotic phases and dynamics in artificial quantum systems. Here we explore the mean-field dynami…
Stabilizing confined quasiparticle dynamics in one-dimensional polar lattice gases
Guo-Qing Zhang, L. F. Quezada
The disorder-free localization that occurred in the study of relaxation dynamics in far-from-equilibrium quantum systems has been widely explored. Here we investigate the interplay…
Quantized Topological Anderson-Thouless Pump
Yi-Piao Wu, Ling-Zhi Tang, Guo-Qing Zhang +1
Thouless pump with quantized transports is topologically robust against small perturbations and disorders, while breaks down under sufficiently strong disorders. Here we propose co…
Topological Anderson insulators induced by random binary disorders
Shu-Na Liu, Guo-Qing Zhang, Ling-Zhi Tang +1
Different disorders lead to various localization and topological phenomena in condensed matter and artificial systems. Here we study the topological and localization properties in…
Topological Anderson insulators with different bulk states in quasiperiodic chains
Ling-Zhi Tang, Shu-Na Liu, Guo-Qing Zhang +1
We investigate the topology and localization of one-dimensional Hermitian and non-Hermitian Su-Schrieffer-Heeger chains with quasiperiodic hopping modulations. In the Hermitian cas…
Interplay of nonreciprocity and nonlinearity on mean-field energy and dynamics of a Bose-Einstein condensate in a double-well potential
Yi-Piao Wu, Guo-Qing Zhang, Cai-Xia Zhang +2
We investigate the mean-field energy spectrum and dynamics in a Bose-Einstein condensate in a double-well potential with non-Hermiticity from the nonreciprocal hopping, and show th…
Connecting Topological Anderson and Mott Insulators in Disordered Interacting Fermionic Systems
Guo-Qing Zhang, Ling-Zhi Tang, Ling-Feng Zhang +2
The topological Anderson and Mott insulators are two phases that have so far been separately and widely explored beyond topological band insulators. Here we combine the two seeming…
Localization and topological transitions in non-Hermitian quasiperiodic lattices
Ling-Zhi Tang, Guo-Qing Zhang, Ling-Feng Zhang +1
We investigate the localization and topological transitions in a one-dimensional (interacting) non-Hermitian quasiperiodic lattice, which is described by a generalized Aubry-André-…
Machine learning topological invariants of non-Hermitian systems
Ling-Feng Zhang, Ling-Zhi Tang, Zhi-Hao Huang +3
The study of topological properties by machine learning approaches has attracted considerable interest recently. Here we propose machine learning the topological invariants that ar…
Topological Anderson insulators in two-dimensional non-Hermitian disordered systems
Ling-Zhi Tang, Ling-Feng Zhang, Guo-Qing Zhang +1
The interplay among topology, disorder, and non-Hermiticity can induce some exotic topological and localization phenomena. Here we investigate this interplay in a two-dimensional n…
Statistically related many-body localization in the one-dimensional anyon Hubbard model
Guo-Qing Zhang, Dan-Wei Zhang, Zhi Li +2
Many-body localization (MBL) has been widely investigated for both fermions and bosons, it is, however, much less explored for anyons. Here we numerically calculate several physica…
Continuous-variable assisted thermal quantum simulation
Dan-Bo Zhang, Guo-Qing Zhang, Zheng-Yuan Xue +2
Simulation of a quantum many-body system at finite temperatures is crucially important but quite challenging. Here we present an experimentally feasible quantum algorithm assisted…
Skin superfluid, topological Mott insulators, and asymmetric dynamics in interacting non-Hermitian Aubry-Andre-Harper models
Dan-Wei Zhang, Yu-Lian Chen, Guo-Qing Zhang +3
Non-Hermitian quantum many-body systems are a fascinating subject to be explored. Using the generalized density matrix renormalisation group method and complementary exact diagonal…
Simulating bosonic Chern insulators in one-dimensional optical superlattices
Yu-Lian Chen, Guo-Qing Zhang, Dan-Wei Zhang +1
We study the topological properties of an extended Bose-Hubbard model with cyclically modulated hopping and on-site potential parameters, which can be realized with ultracold boson…
Quantum evolution speed in the finite-temperature bosonic environment
Jun-Qing Cheng, Guo-Qing Zhang, Jing-Bo Xu
We investigate the quantum evolution speed of a qubit in two kinds of finite-temperature environments. The first environment is a bosonic bath with Ohmic-like spectrum. It is found…
A universal assortativity measure for network analysis
Guo-Qing Zhang, Su-Qi Cheng, Guo-Qiang Zhang
Characterizing the connectivity tendency of a network is a fundamental problem in network science. The traditional and well-known assortativity coefficient is calculated on a per-n…