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Lee-Huang-Yang effects in the ultracold mixture of 23Na and 87Rb with attractive interspecies interactions

Guo, Zhichao; Jia, Fan; Li, Lintao; Ma, Yinfeng; Hutson, Jeremy M.; Cui, Xiaoling; Wang, Dajun

Lee-Huang-Yang effects in the ultracold mixture of 23Na and 87Rb with attractive interspecies interactions Thumbnail


Authors

Zhichao Guo

Fan Jia

Lintao Li

Yinfeng Ma

Xiaoling Cui

Dajun Wang



Abstract

The beyond-mean-field Lee-Huang-Yang (LHY) correction is ubiquitous in dilute ultracold quantum gases. However, its effects are often elusive due to the typically much larger influence of the mean-field (MF) energy. In this work, we study an ultracold mixture of 23Na and 87Rb with tunable attractive interspecies interactions. The LHY effects manifest in the formation of self-bound quantum liquid droplets and the expansion dynamics of the gas-phase sample. A liquid-to-gas-phase diagram is obtained by measuring the critical atom numbers below which the self-bound behavior disappears. In stark contrast to trapped gas-phase condensates, the gas-phase mixture formed following the liquid-to-gas-phase transition shows an anomalous expansion featuring a larger release energy for increasing MF attractions.

Citation

Guo, Z., Jia, F., Li, L., Ma, Y., Hutson, J. M., Cui, X., & Wang, D. (2021). Lee-Huang-Yang effects in the ultracold mixture of 23Na and 87Rb with attractive interspecies interactions. Physical Review Research, 3(3), Article 033247. https://doi.org/10.1103/physrevresearch.3.033247

Journal Article Type Article
Acceptance Date Aug 24, 2021
Online Publication Date Sep 14, 2021
Publication Date 2021-11
Deposit Date Oct 7, 2021
Publicly Available Date Dec 2, 2021
Journal Physical Review Research
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 3
Issue 3
Article Number 033247
DOI https://doi.org/10.1103/physrevresearch.3.033247
Related Public URLs https://arxiv.org/abs/2105.01277

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http://creativecommons.org/licenses/by/4.0/

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Advance online version It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 4.0 International license. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.




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