Results in Physics

Rydberg-dressed solitons in Bose-Einstein condensates with parity-time symmetry

Yuxi Xu, Yuan Zhao, Qihong Huang, De-Wei Wang, Zhuo Fan, L. Xue, Si-Liu Xu

Published May 10, 2023• 1 citation

Abstract

Generating stable bright solitons in free space has been a long-standing goal in the study of matter waves in Bose-Einstein condensates (BECs). Rydberg-induced matter wave demonstrates an excellent effect in balancing the repulsive and attractive interactions between remote atoms. Parity-time (PT) symmetric lattices have been widely studied in controlling the flow of matter waves. In this study, we theoretically investigated the localization of nonlinear matter waves in the PT-symmetric Rydberg atomic BECs system. The numerical simulation method was used to obtain the stationary solutions of the wave function by solving the Gross-Pitaevskii equation (GPE) of the Rydberg-dressed BECs system. Fundamental, higher-order solitons and vortical ones were uncovered, and their stabilities were evaluated through linear-stability analysis and direct simulation with perturbation. Furthermore, the collision of solitons exhibited a quasi-elastic feature.

DOI: 10.1016/j.rinp.2023.106534

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