Photonics (Apr 2022)

Two-Dimensional Solitons in Bose–Einstein Condensates with Spin–Orbit Coupling and Rydberg–Rydberg Interaction

  • Kewei Wang,
  • Hui Jin,
  • Yunbin Lei,
  • Yuan Zhao,
  • Kaiyu Huang,
  • Siliu Xu

DOI
https://doi.org/10.3390/photonics9050283
Journal volume & issue
Vol. 9, no. 5
p. 283

Abstract

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Applying an imaginary time evolution method (AITEM) to the system of Gross–Pitaevskii equations, we find two-dimensional stable solitons in binary atomic Bose–Einstein condensates with spin–orbit coupling (SOC) and the Rydberg–Rydberg interaction (RRI). The stability of 2D solitons by utilizing their norm and energy is discussed in detail. Depending on the SOC and Rydberg–Rydberg interaction, we find stable zero-vorticity and vortical solitons. Furthermore, we show that the solitons can be effectively tuned by the local and nonlocal nonlinearities of this system.

Keywords