期刊
RESULTS IN PHYSICS
卷 19, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.rinp.2020.103381
关键词
Nonlinear fractional Schrodinger equation; PT-symmetric optical lattices; Spatial optical solitons; Saturable nonlinear media
资金
- National Natural Science Foundation of China [11774068, 61675001]
- Guangdong Province Natural Science Foundation of China [2017A030311025]
- Guangdong Province Education Department Foundation of China [2018KZDXM044]
We report on the existence and the stability of spatial solitons supported by one-dimensional (1D) parity-time (PT)-symmetric optical lattices with self-focusing saturable nonlinearity in the fractional Schrodinger equation. These spatial optical solitons are found to exist in the semi-infinite gap and are stable in several continuous regions. In addition, the effects of the Levy index and the saturation parameter on soliton stability are also studied. Our results demonstrate that the system described here can produce unique properties for soliton stability and propagation. We also perform a stability analysis for these solitons and the analysis results are confirmed by the soliton propagations.
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