Abstract

Synthetic gauge fields in synthetic dimensions are now of great interest. This concept provides a convenient manner for exploring topological phases of matter. Here, we report on the first experimental realization of an atom-optically synthetic gauge field based on the synthetic momentum-state lattice of a Bose gas of 133Cs atoms, where magnetically controlled Feshbach resonance is used to tune the interacting lattice into noninteracting regime. Specifically, we engineer a noninteracting one-dimensional lattice into a two-leg ladder with tunable synthetic gauge fields. We observe the flux-dependent populations of atoms and measure the gauge field-induced chiral currents in the two legs. We also show that an inhomogeneous gauge field could control the atomic transport in the ladder. Our results lay the groundwork for using a clean noninteracting synthetic momentum-state lattice to study the gauge field-induced topological physics.

A two-leg ladder with tunable gauge fields is achieved by one-dimensional synthetic momentum-state lattice of a noninteracting Bose gas.

Details

Title
Atom-optically synthetic gauge fields for a noninteracting Bose gas
Author
Li, Yuqing 1 ; Zhang, Jiahui 2   VIAFID ORCID Logo  ; Wang, Yunfei 2 ; Du Huiying 2 ; Wu Jizhou 1 ; Liu, Wenliang 1 ; Feng, Mei 1 ; Ma, Jie 1   VIAFID ORCID Logo  ; Xiao Liantuan 1 ; Jia Suotang 1 

1  Shanxi University, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Taiyuan, China (GRID:grid.163032.5) (ISNI:0000 0004 1760 2008); Shanxi University, Collaborative Innovation Center of Extreme Optics, Taiyuan, China (GRID:grid.163032.5) (ISNI:0000 0004 1760 2008) 
2  Shanxi University, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Taiyuan, China (GRID:grid.163032.5) (ISNI:0000 0004 1760 2008) 
Publication year
2022
Publication date
2022
Publisher
Springer Nature B.V.
e-ISSN
20477538
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41377-021-00702-7
ProQuest document ID
2617587480
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.