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Observation of coupled vortex lattices in a mass-imbalance bose and fermi superfluid mixture

Quantized vortices play an essential role in diverse superfluid phenomena. In a Bose-Fermi superfluid mixture, especially of two mass-imbalance species, such macroscopic quantum phenomena are particularly rich due to the interplay between the Bose and Fermi superfluidity. However, generating a Bose-...

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Main Authors: Yao, Xing-Can (Author) , Chen, Hao-Ze (Author) , Wu, Yu-Ping (Author) , Liu, Xiang-Pei (Author) , Wang, Xiao-Qiong (Author) , Jiang, Xiao (Author) , Deng, Youjin (Author) , Chen, Yu-Ao (Author) , Pan, Jian-Wei (Author)
Format: Article (Journal)
Language:English
Published: 27 September 2016
In: Physical review letters
Year: 2016, Volume: 117, Issue: 14, Pages: 1-5
ISSN:1079-7114
DOI:10.1103/PhysRevLett.117.145301
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.117.145301
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.117.145301
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Author Notes:Xing-Can Yao, Hao-Ze Chen, Yu-Ping Wu, Xiang-Pei Liu, Xiao-Qiong Wang, Xiao Jiang, Youjin Deng, Yu-Ao Chen, and Jian-Wei Pan
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Summary:Quantized vortices play an essential role in diverse superfluid phenomena. In a Bose-Fermi superfluid mixture, especially of two mass-imbalance species, such macroscopic quantum phenomena are particularly rich due to the interplay between the Bose and Fermi superfluidity. However, generating a Bose-Fermi two-species superfluid, producing coupled vortex lattices within, and further probing interspecies interaction effects remain challenging. Here, we experimentally realize a two-species superfluid with dilute gases of lithium-6 and potassium-41, having a mass ratio of about seven. By rotating the superfluid mixture, we simultaneously produce coupled vortex lattices of the two species and thus present a definitive visual evidence for the double superfluidity. Moreover, we report several unconventional behaviors, due to the Bose-Fermi interaction, on the formation and decay of two-species vortices.
Item Description:Gesehen am 30.09.2021
Physical Description:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.117.145301

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