Dynamics of wavepackets and entanglement in many-body kicked rotors under quantum resonance

Quantum Physics [Submitted on 15 Apr 2026] Dynamics of wavepackets and entanglement in many-body kicked rotors under quantum resonance Yangshuo Zhou, Jiao Wang We investigate a many-body interacting system of quantum kicked rotors, where each rotor resides in its respective quantum resonance. Rich many-body dynamics are found to emerge from the interplay between the principal and secondary resonances. In particular, for both the wavepacket and bipartite entanglement entropy, we analytically demonstrate three distinct dynamical regimes -- quadratic spreading (growth), period-2 oscillation, and their hybrid -- governed by the respective symmetries of the relevant potentials. Based on these symmetries, the connection between the wavepacket and the entanglement dynamics is illustrated. Other related issues are also discussed, including higher-order resonance effects, the robustness of the predicted dynamical behaviors, extension to many-body kicked tops, and relevance to experimental studies. Comments: 17 pages, 7 figures Subjects: Quantum Physics (quant-ph); Other Condensed Matter (cond-mat.other); Chaotic Dynamics (nlin.CD); Exactly Solvable and Integrable Systems (nlin.SI) Cite as: arXiv:2604.13382 [quant-ph]   (or arXiv:2604.13382v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2604.13382 Focus to learn more Journal reference: Physical Review B 113, 144307 (2026) Related DOI: https://doi.org/10.1103/1lj8-xjps Focus to learn more Submission history From: Jiao Wang [view email] [v1] Wed, 15 Apr 2026 01:12:24 UTC (1,213 KB) Access Paper: HTML (experimental) view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-04 Change to browse by: cond-mat cond-mat.other nlin nlin.CD nlin.SI References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)