19 citations · 49 across the 16 of their papers we have counts for
16 papers
Quench dynamics in nonreciprocal Aubry-André-Harper model
Zhiyu Pei, Yongxu Fu, Gao Xianlong
The critical phase of a non-Hermitian quasicrystal can support stronger transport than its surrounding delocalized phase. We demonstrate this anomalous behavior in the one-dimensio…
Unbound States and Mixed Bound--Unbound Phases in Near-Infinitely Deep Potentials
Shujie Cheng, Tong Liu, Gao Xianlong
We investigate the robustness of unbound states in one-dimensional quasiperiodic models with near-infinitely deep potentials. By constructing a deeper extension of the Liu-Xia mode…
Thermodynamic modes of a quasiperiodic mobility-edge system in a quantum Otto cycle
Ao Zhou, Shujie Cheng, Gao Xianlong
We investigate thermodynamic operation of a quasiperiodic lattice with an exact mobility edge, described by the Biddle--Das Sarma model. We use this model as the working medium of…
Wigner distribution, Wigner entropy and Quantum Refrigerator of a One-Dimensional Off-diagonal Quasicrystal
Shan Suo, Ao Zhou, Yanting Chen +2
We investigate an off-diagonal quasicrystal featuring simultaneous off-diagonal and diagonal quasiperiodic modulations. By analyzing the fractal dimension, we map out the delocaliz…
High-Winding-Number Zero-Energy Edge States in Rhombohedral-Stacked Su-Schrieffer-Heeger Multilayers
Feng Lu, Ao Zhou, Shujie Cheng +1
We study the topological properties of rhombohedral-stacked N-layer Su-Schrieffer-Heeger networks with interlayer coupling. We find that these systems exhibit -fold degenerate…
Quantum Mpemba effect in quasiperiodic systems
Ao Zhou, Feng Lu, Shujie Cheng +1
We study a one-dimensional quasiperiodic tight-binding model with simultaneous off-diagonal (hopping) and diagonal (onsite) modulations. Using the inverse participation ratio and t…
Wigner distribution, Wigner entropy, and Anomalous Transport of a Generalized Aubry-André model
Feng Lu, Ao Zhou, Shujie Cheng +1
We investigate generalized Aubry-André models featuring tunable quasidisordered potentials and a mobility edge that separates extended and localized states, with critical states fo…
When Homogeneous Systems Meet Dissipation and Disorder
Xixi Feng, Ao Zhou, Feng Lu +2
We investigate the localization and topological properties of the non-equilibrium steady state (NESS) in a one-dimensional homogeneous system. Our results demonstrate that, despite…
Multicomponent cat states with sub-Planckian structures and their optomechanical analogues
Tan Hailin, Naeem Akhtar, Gao Xianlong
We investigate the superposition of coherent states, emphasizing quantum states with distinct Wigner phase-space features relevant to quantum information applications. In this stud…
Long-range hopping in a quasiperiodic potential weakens the non-Hermitian skin effect
Dechi Peng, Shujie Cheng, Gao Xianlong
In this paper, we investigate a non-Hermitian Aubry-André-Harper model characterized by power-law hoppings () and a quasi-periodic parameter , where denotes the pow…
Phase driven unconventional superradiance phase transition in non-Hermitian cascaded quantum Rabi cavities
Shujie Cheng, Shuai-Peng Wang, G. D. M. Neto +1
This study investigates phase-driven symmetry breaking leading to superradiance phase transitions in cascaded non-Hermitian quantum Rabi cavities. Non-Hermiticity is introduced via…
Bulk-edge correspondence for the nonlinear eigenvalues problem of the Haldane model
Shujie Cheng, Yonghua Jiang, Gao Xianlong
Recently, there is an interest in studying the bulk-edge correspondence for nonlinear eigenvalues problems in a two-dimensional topological system with spin-orbit coupling. By intr…
Power law hopping of single particles in one-dimensional non-Hermitian quasicrystals
Dechi Peng, Shujie Cheng, Gao Xianlong
In this paper, a non-Hermitian Aubry-André-Harper model with power-law hoppings () and quasiperiodic parameter is studied, where is the power-law index, is the…
Quantum criticality driven by the cavity coupling in Rabi-dimer model
Shujie Cheng, Heguang Xu, Xueying Liu +1
The superradiant phase transition (SPT) controlled by the interacting strength between the two-level atom and the photons has been a hot topic in the Rabi model and the Rabi-dimer…
Majorana zero modes, unconventional real-complex transition and mobility edges in a one-dimensional non-Hermitian quasi-periodic lattice
Shujie Cheng, Gao Xianlong
In this paper, a one-dimensional non-Hermitian quasiperiodic -wave superconductor without -symmetry is studied. By analyzing the spectrum, we discovered there stil…
Fate of Majorana zero modes by a modified real-space-Pfaffian method and mobility edges in a one-dimensional quasiperiodic lattice
Shujie Cheng, Yufei Zhu, Gao Xianlong +1
We aim to study a one-dimensional -wave superconductor with quasiperiodic on-site potentials. A modified real-space-Pfaffian method is applied to calculate the topological invar…