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29 March 2024
 
  » arxiv » 1903.3433

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Vortex soliton in a cold atomic gas via electromagnetically induced transparency
Shun-fang Chen ; Ya-Wei Guo ; Qi Guo ; Dong Zhao ; Milivoj R. Belić ; Yuan Zhao ; Si-liu Xu ;
Date 8 Mar 2019
AbstractWe investigate the formation and propagation of vector vortex solitons (VS) and unipolar soliton (US) in a cold atomic gas with Bessel lattices (BLs). The system we consider is a cold, coherent atomic gas with a tripod or multipod level configuration. Dueing to the giant enhancement of Kerr nonlinearity contributed by electromagnetically induced transparency (EIT), a vector weak vortex soliton can be effectively formed with ultraslow propagating velocity. Furthermore, we demonstrate that the characteristics of 2D VS and US can be controlled and manipulated via adjusting BLs. The results predicted here may be used to design all-optical switching at very low light level.
Source arXiv, 1903.3433
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