Vortex soliton in a cold atomic gas via electromagnetically induced transparency
Abstract
We 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.
Cite
@article{arxiv.1903.03433,
title = {Vortex soliton in a cold atomic gas via electromagnetically induced transparency},
author = {Shun-fang Chen and Ya-Wei Guo and Qi Guo and Dong Zhao and Milivoj R. Belić and Yuan Zhao and Si-liu Xu},
journal= {arXiv preprint arXiv:1903.03433},
year = {2019}
}
Comments
14 pages and 5 figures. arXiv admin note: substantial text overlap with arXiv:1604.05046 by other authors