11 citations · 28 across the 9 of their papers we have counts for
9 papers
Fate of moiré flat bands for a weakly repulsive Bose-Einstein condensate in one-dimensional -symmetric bichromatic optical lattices
Enhong Cheng, Yu Tan, Yanzhen Xu +1
One-dimensional (1D) superlattices provide one simplified platform for exploring moiré physics from a low-dimensional perspective, with the ratio of lattice constants playing a rol…
Emergent Macroscopic Nonreciprocity from Identical Active Particles via Spontaneous Symmetry Breaking
Wei-Chen Guo, Zuo Wang, Pei-Fang Wu +3
Nonreciprocity is known to generate a wide range of exotic phenomena in multi-species many-body systems, where different species influence one another through couplings that violat…
Electric circuit analog of Landau-Zener tunneling using time-varying elements
Enhong Cheng, Zheng Lian, Zezhou Chen +1
Landau-Zener tunneling (LZT) is a fundamental dynamical phenomenon, ubiquitous in various quantum systems. Here, we propose a time-varying electric circuit to address the question…
Direct measurement of the quantum geometric tensor in pseudo-Hermitian systems
Ze-Hao Huang, Hai-Tao Ding, Li-Jun Lang
The quantum geometric tensor (QGT) fundamentally encodes the geometry and topology of quantum states in both Hermitian and non-Hermitian regimes. While adiabatic perturbation theor…
Interaction-induced reentrance of Bose glass and quench dynamics of Bose gases in twisted bilayer and quasicrystal optical lattices
Shi-Hao Ding, Li-Jun Lang, Qizhong Zhu +1
We investigate the ground-state and dynamical properties of ultracold Bose gases in optical lattices with a quasicrystal structure, inspired by recent experiments on twisted bilaye…
Non-Abelian geometry, topology, and dynamics of a nonreciprocal Su-Schrieffer-Heeger ladder
Ziyu Zhou, Zhi-Cong Xu, Li-Jun Lang
Non-Hermiticity naturally breaks down the adiabaticity and thus leads to non-Abelian behaviors in multi-band systems. Here, we study how non-Abelian properties emerge in non-Hermit…
Two mass-imbalanced atoms in a hard-wall trap: Deep learning integrability of many-body systems
Liheng Lang, Qichen Lu, C. M. Dai +3
The study of integrable systems has led to significant advancements in our understanding of many-body physics. We design a series of numerical experiments to analyze the integrabil…
General mapping of one-dimensional non-Hermitian mosaic models to non-mosaic counterparts: Mobility edges and Lyapunov exponents
Sheng-Lian Jiang, Yanxia Liu, Li-Jun Lang
We establish a general mapping from one-dimensional non-Hermitian mosaic models to their non-mosaic counterparts. This mapping can give rise to mobility edges and even Lyapunov exp…
Nonlinear perturbation of a high-order exceptional point: skin discrete breathers and the hierarchical power-law scaling
Hui Jiang, Enhong Cheng, Ziyu Zhou +1
We study the nonlinear perturbation of a high-order exceptional point (EP) of the order equal to the system site number in a Hatano-Nelson model with unidirectional hopping and…