Three-dimensional solitons in Bose-Einstein condensates with spin-orbit coupling and Bessel optical lattices

Hong Li, Si Liu Xu*, Milivoj R. Belić, Jia Xi Cheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

Applying a variational approach and numerical analysis to the system of Gross-Pitaevskii equations, we find three-dimensional (3D) stable solitons in binary atomic Bose-Einstein condensates with spin-orbit coupling (SOC) and out-of-phase linear and nonlinear Bessel optical lattices. We discuss the stability of 3D solitons by utilizing their norm and energy. The introduction of Bessel potentials makes the evolution and collisions of solitons more stable and improves their resistance to collapse. Depending on the strength of the intra- and intercomponent spatial modulation of the nonlinearity and SOC, we find stable solitons of the semivortex and mixed-mode structures. Furthermore, we show that the solitons are stable against small perturbations in propagation and collisions.

Original languageEnglish
Article number033827
JournalPhysical Review A
Volume98
Issue number3
DOIs
Publication statusPublished - 26 Sept 2018
Externally publishedYes

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