中文版 | English
Title

Simple and active magnetic-field stabilization for cold atom experiments

Author
Corresponding AuthorYang, Sheng-Jun
Publication Years
2022-12-01
DOI
Source Title
ISSN
0034-6748
EISSN
1089-7623
Volume93Issue:12
Abstract

Cold atom experiments usually need a controllable and low-noise bias magnetic field to provide a quantization axis. Most labs need homemade stabilization of the field according to the actual setup, as commercially available power supply cannot directly satisfy their requirements. Here, by measuring the field fluctuations and active feedback modulating current supply of the applied magnetic field, we successfully demonstrate a field of 10.58 G with a stability to the level of 2.8 x 10(-7) in a duration of 5 min. The root mean square noise is reduced to 0.05 mG, compared to the noise of 1.3 mG without stabilization. The coherence time of the magnetic-field sensitive transition between the rubidium ground states |F = 1, mF = -1 > and |1, 0 >, as measured by Rabi oscillation, is extended to 19.2 ms from the unstabilized value of 1.3 ms. This result is long enough for most experiments on quantum simulation and precision measurement. As our system has no passive magnetic shielding and additional compensation coils, it is highly simple and compact to provide the stable magnetic field and would be adapted to various applications with cold atoms.

URL[Source Record]
Indexed By
Language
English
SUSTech Authorship
First ; Corresponding
Funding Project
Key-Area Research and Development Program of Guangdong Province[2019ZT08X324] ; Guangdong Provincial Key Laboratory[2019B121203002]
WOS Research Area
Instruments & Instrumentation ; Physics
WOS Subject
Instruments & Instrumentation ; Physics, Applied
WOS Accession No
WOS:000893032100002
Publisher
ESI Research Field
CHEMISTRY
Data Source
Web of Science
Citation statistics
Cited Times [WOS]:0
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/417314
DepartmentInstitute for Quantum Science and Engineering
Affiliation
1.Southern Univ Sci & Technol, Sch Sci, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Prov Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China
First Author AffilicationInstitute for Quantum Science and Engineering
Corresponding Author AffilicationInstitute for Quantum Science and Engineering
First Author's First AffilicationInstitute for Quantum Science and Engineering
Recommended Citation
GB/T 7714
Duan, Zhi-Xin,Wu, Wei-Tao,Lin, Yue-Tong,et al. Simple and active magnetic-field stabilization for cold atom experiments[J]. REVIEW OF SCIENTIFIC INSTRUMENTS,2022,93(12).
APA
Duan, Zhi-Xin,Wu, Wei-Tao,Lin, Yue-Tong,&Yang, Sheng-Jun.(2022).Simple and active magnetic-field stabilization for cold atom experiments.REVIEW OF SCIENTIFIC INSTRUMENTS,93(12).
MLA
Duan, Zhi-Xin,et al."Simple and active magnetic-field stabilization for cold atom experiments".REVIEW OF SCIENTIFIC INSTRUMENTS 93.12(2022).
Files in This Item:
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5.0119778.pdf(4825KB) Restricted Access--
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