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arXiv · 2305.17309

Three-dimensional Isotropic Droplets in Rydberg-dressed Bose Gases

Hao Zhu·Yong-Yao Li·Wen-Kai Bai·Yan-Mei Yu·Lin Zhuang·Wu-Ming Liu
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Abstract

We predict a scheme for the creation of isotropic three-dimensional droplets in Rydbeg-dressed Bose gases, which contain both repulsive contact interactions and attractive van der Waals interactions causing the quantum fluctuation effect non-negligible. We present detailed beyond mean-field calculations with Lee-Huang-Yang correction and demonstrate the existence of isotropic droplets under realistic experimental conditions. Stable droplets possess flat-top density distribution, and their chemical potentials decrease with the particle number expansion towarding a critical value. We distinguish droplets from bright solitons through peak density, width of condensate and quantum depletion calculations. We summarize a phase diagram of realizing droplets, and subsequently highlight the stability of droplets by real time evolution as well as collisions. Our work provides a novel platform for investigating excitation spectrum and superfluid nature of droplets.

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Hao Zhu, Yong-Yao Li, Wen-Kai Bai, Yan-Mei Yu, Lin Zhuang, Wu-Ming Liu. 2023-05-26. Three-dimensional Isotropic Droplets in Rydberg-dressed Bose Gases. https://arxiv.org/abs/2305.17309

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