Numerical simulation on many-body quantum chaos of ultracold atoms with synthetic gauge fields

Results in Physics

卷:34

Jie Liu¹  Wen-Lei Zhao²  Wen-Yuan Wang³ 

[1] Beijing Computational Science Research Center, Beijing 100193, China;

[2] Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;

[3] Key Laboratory of Atomic and Molecular Physics &

关键词: Quantum chaos;    Ultracold atoms;    Synthetic gauge fields;    Quadruple-well potential;   

DOI  :  

来源: DOAJ

【 摘 要 】

We investigate the quantum chaos of ultracold atoms in a quadruple-well potential, emphasizing the influence of synthetic gauge fields and many-body atomic interactions on the transitions from regular behavior to quantum chaos. We compare the metrics that the eigenvalue statistics of nearest-neighbor spacings distribution and gap ratio analysis, and the eigenfunction statistics using the Kullback–Leibler divergence and the inverse participation ratio, to diagnose the transition from regular to chaotic behavior. Numerically, we obtain the phase diagram of the regular and chaotic behavior on the parameter plane of many-body atomic interactions and synthetic gauge fields. Our results provide insight into the chaotic behavior of ultracold atoms with synthetic gauge fields and have potential applications in the quantum engineering of wave chaos.

【 授权许可】

Unknown