全光学冷却与囚禁~(133)Cs原子玻色-爱因斯坦凝聚的可能性

doi:10.3321/j.issn:1000-3290.2001.04.015

CORC > 北京大学 > 信息科学技术学院

	全光学冷却与囚禁~(133)Cs原子玻色-爱因斯坦凝聚的可能性; Possibility of all optically-cooled and trapped Cs-133 atomic BEC
	印建平 ; 高伟建 ; 刘南春 ; 王义遒
刊名	物理学报
	2001
关键词	倒金字塔型中空光束重力光学囚禁强度梯度冷却氩离子中空光束囚禁喇曼冷却铯原子BEC pyramidal-hollow-beam gravito-optical trap intensity gradient cooling Ar+ hollow-beam trap Raman cooling Cs-133 atomic BEC
DOI	10.3321/j.issn:1000-3290.2001.04.015
英文摘要	综述了近年来有关蒸发冷却13 3 Cs原子样品的实验进展 ,分析了磁囚禁13 3 Cs原子玻色爱因斯坦凝聚 (BEC)的困难 ,并在此基础上提出了一个全光型冷却与囚禁13 3 Cs原子BEC的新方案 .该方案主要由一个来自半导体激光 (λ=0 85 2 μm)的倒金字塔形中空光束重力光学囚禁 (pyramidal hollow beam gravito opticaltrap ,缩写为PHBGOT)和一个来自Ar+ 激光 ( λ =0 5 0 13μm)的圆锥形中空光束重力光学囚禁 (conical hollow beam gravito opticaltrap ,缩写为CHBGOT)组...; The experimental progress on rf evaporative cooling of Cs-133 atomic sample in recent year is reviewed, and the difficulty of magnetically trapped Cs-133 atomic Bose-Einstein condensation (BEC) is analyzed. In this paper, we propose an all-optically-cooled and -trapped Cs-133 BEC scheme, which is composed of a pyramidal-hollow-beam gravito-optical trap (PHB GOT) from a diode laser (lambda = 0.852 mum) and a conical-hollow-beam (CHB) GOT from an Ar+ laser (<()over bar> = 0.5013 mum) In the PHB GOT, the cold atoms experience an efficient hollow-beam induced Sisyphus cooling (i.e., intensity gradient cooling) and repumpimg-beam induced geometric cooling, and they will be cooled to a few photon-recoil limits ( similar to2 muK) from MOT's temperature ( similar to 60 muK) Whereas in the Ar+ hollow-laser-beam trap, cold atoms will be further cooled by Raman cooling (or velocity-selection coherent population trapping) and compressed by a blue-detuned covering beam. We have performed Monte-Carlo simulations for PHB cooling process, calculated the optical potential for Cs-133 atoms in Ar+ hollow laser beam, and estimated total collision loss and atomic density. Our study shows that the realization of an optically-cooled and -trapped BEC of Cs-133 atoms may be possible in our all-optical dipole trap.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000167947700015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科学引文数据库(CSCD); 15; 04; 660-666; 50
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/247506]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	印建平,高伟建,刘南春,等. 全光学冷却与囚禁~(133)Cs原子玻色-爱因斯坦凝聚的可能性, Possibility of all optically-cooled and trapped Cs-133 atomic BEC[J]. 物理学报,2001.
APA	印建平,高伟建,刘南春,&王义遒.(2001).全光学冷却与囚禁~(133)Cs原子玻色-爱因斯坦凝聚的可能性.物理学报.
MLA	印建平,et al."全光学冷却与囚禁~(133)Cs原子玻色-爱因斯坦凝聚的可能性".物理学报 (2001).