Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap

doi:10.1088/1674-1056/27/7/073701

	Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap
	Xiang, Jing-feng 1,2,3; Cheng, He-nan 1,2,3; Peng, Xiang-kai 1,2,3; Wang, Xin-wen 1,2,3; Ren, Wei 2,3; Ji, Jing-wei 2,3; Liu, Kang-kang 2,3; Zhao, Jian-bo 2,3; Li, Lin 2,3; Qu, Qiu-zhi 2,3
刊名	CHINESE PHYSICS B
	2018-07-01
卷号	27 期号:7 页码:8
关键词	atom traps atomic and molecular collision residual gas
ISSN号	1674-1056
DOI	10.1088/1674-1056/27/7/073701
英文摘要	The loss rate of cold atoms in a trap due to residual gas collisions differs from that in a free state after the cold atoms are released from the trap. In this paper, the loss rate in a cold rubidium-87 atom cloud was measured in a magneto-optical trap (MOT) and during its free flight. The residual gas pressure was analyzed by a residual gas analyzer, and the pressure distribution in a vacuum chamber was numerically calculated by the angular coefficient method. The decay factor, which describes the decay behavior of cold atoms due to residual gas collisions during a free flight, was calculated. It was found that the decay factor agrees well with theoretical predictions under various vacuum conditions.
资助项目	Ministry of Science and Technology of China[2013YQ09094304]
WOS关键词	OPTICAL TRAP ; SPACE CLOCK ; VAPOR-CELL ; DEPENDENCE ; PRESSURE ; DENSITY ; SYSTEM
WOS研究方向	Physics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000439123300001
资助机构	Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China ; Ministry of Science and Technology of China
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/21357]
专题	中国科学院武汉物理与数学研究所
通讯作者	Lu, De-Sheng; Liu, Liang
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Ctr Cold Atom Phys, Shanghai 201800, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Xiang, Jing-feng,Cheng, He-nan,Peng, Xiang-kai,et al. Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap[J]. CHINESE PHYSICS B,2018,27(7):8.
APA	Xiang, Jing-feng.,Cheng, He-nan.,Peng, Xiang-kai.,Wang, Xin-wen.,Ren, Wei.,...&Liu, Liang.(2018).Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap.CHINESE PHYSICS B,27(7),8.
MLA	Xiang, Jing-feng,et al."Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap".CHINESE PHYSICS B 27.7(2018):8.