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

Yu-Xi Xu; Yuan Zhao; Qi-Hong Huang; De-Wei Wang; Zhuo Fan; Li Xue; Si-Liu Xu

Results in Physics (Jun 2023)

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

Yu-Xi Xu,
Yuan Zhao,
Qi-Hong Huang,
De-Wei Wang,
Zhuo Fan,
Li Xue,
Si-Liu Xu

Affiliations

Yu-Xi Xu: School of Biomedical Engineering and Medical Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China; Intercultural Communication, Faculty of Humanities, the University of Manchester, Manchester M13 9PL, UK
Yuan Zhao: School of Biomedical Engineering and Medical Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China; Laboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, China
Qi-Hong Huang: Laboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, China; School of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China
De-Wei Wang: School of Basic Medicine Sciences, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China
Zhuo Fan: School of Biomedical Engineering and Medical Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China; Laboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, China; Corresponding authors at: School of Biomedical Engineering and Medical Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China.
Li Xue: Laboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, China; School of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China
Si-Liu Xu: School of Biomedical Engineering and Medical Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China; Laboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, China; Corresponding authors at: School of Biomedical Engineering and Medical Imaging, Xianning Medical College, Hubei University of Science and Technology, Xianning 437100, China.

Journal volume & issue: Vol. 49
p. 106534

Abstract

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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.

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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