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Light bullets in a nonlocal Rydberg medium with PT-symmetric moiré optical lattices

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Listed:
  • Xu, Si-Liu
  • Zhu, Min
  • Peng, Jia-Xin
  • Fan, Xi
  • Huang, Qi-Hong
  • Hua, Chun-Bo
  • Zhao, Yuan

Abstract

Realizing stable light bullets in high dimensions is a long-standing goal in the study of nonlinear optics. Here, we propose a scheme for the creation of stable light bullets (LBs) in a cold Rydberg atomic gas system with PT symmetry moiré optical lattices. Depending on the synergetic local and nonlocal Kerr nonlinearities, and PT symmetry moiré optical lattices, we obtain an appropriate nonlocal Rydberg long-range interaction and PT symmetry potential which can compensate for the diffraction and dispersion of the probe field. Numerical results show that different spatial and temporal distributions of LBs, including fundamental, multi-pole solitons, and vortical ones are uncovered, and their stabilities are evaluated through linear-stability analysis and direct simulation with perturbation. Furthermore, the solitons exhibit a quasi-elastic collision in the transversal direction during propagation. Our study provides a new route for manipulating LBs via controlled optical nonlinearities and PT symmetry moiré optical lattices in cold Rydberg gases.

Suggested Citation

  • Xu, Si-Liu & Zhu, Min & Peng, Jia-Xin & Fan, Xi & Huang, Qi-Hong & Hua, Chun-Bo & Zhao, Yuan, 2023. "Light bullets in a nonlocal Rydberg medium with PT-symmetric moiré optical lattices," Chaos, Solitons & Fractals, Elsevier, vol. 177(C).
    • Handle: RePEc:eee:chsofr:v:177:y:2023:i:c:s0960077923011001
    DOI: 10.1016/j.chaos.2023.114198
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    References listed on IDEAS

    as
    1. Peng Wang & Yuanlin Zheng & Xianfeng Chen & Changming Huang & Yaroslav V. Kartashov & Lluis Torner & Vladimir V. Konotop & Fangwei Ye, 2020. "Localization and delocalization of light in photonic moiré lattices," Nature, Nature, vol. 577(7788), pages 42-46, January.
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