27 citations · 71 across the 6 of their papers we have counts for
6 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…
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…
Asymmetric transfer matrix analysis of Lyapunov exponents in one-dimensional non-reciprocal quasicrystals
Shan-Zhong Li, Enhong Cheng, Shi-Liang Zhu +1
The Lyapunov exponent, serving as an indicator of the localized state, is commonly utilized to identify localization transitions in disordered systems. In non-Hermitian quasicrysta…
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…
Gain/loss effects on spin-orbit coupled ultracold atoms in two-dimensional optical lattices
Zhi-Cong Xu, Ziyu Zhou, Enhong Cheng +2
Due to the fundamental position of spin-orbit coupled ultracold atoms in the simulation of topological insulators, the gain/loss effects on these systems should be evaluated when c…
Dynamical robustness of topological end states in nonreciprocal Su-Schrieffer-Heeger models with open boundary conditions
Li-Jun Lang, Yijiao Weng, Yunhui Zhang +2
For non-Hermitian quantum models, the dynamics is apparently not reflected by the static properties, e.g., the complex energy spectrum, because of the nonorthogonality of the right…