9 papers
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…
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…
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…
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…