Robust light bullets in Rydberg gases with moiré lattice

Ze Yang Li, Jun Hao Li, Yuan Zhao, Jin Long Cui, Jun Rong He, Guo Long Ruan*, Boris A. Malomed, Si Liu Xu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Rydberg electromagnetically-induced transparency has been widely studied as a medium supporting light propagation under the action of nonlocal nonlinearities. Recently, optical potentials based on moiré lattices (MLs) were introduced for exploring unconventional physical states. Here, we predict a possibility of creating fully three-dimensional (3D) light bullets (LBs) in cold Rydberg gases under the action of ML potentials. The nonlinearity includes local self-defocusing and long-range focusing terms, the latter one induced by the Rydberg-Rydberg interaction. We produce zero-vorticity LB families of the fundamental, dipole, and quadrupole types, as well as vortex LBs. They all are gap solitons populating finite bandgaps of the underlying ML spectrum. Stable subfamilies are identified utilizing the combination of the anti-Vakhitov-Kolokolov criterion, computation of eigenvalues for small perturbations, and direct simulations.

Original languageEnglish
Article number106990
JournalResults in Physics
StatePublished - Oct 2023


  • Electromagnetically-induced transparency
  • Gap solitons
  • Light bullets
  • Photonic moiré lattices
  • Rydberg gases


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