Two-stage crossed beam cooling with Li-6 and Cs-133 atoms in   microgravity

doi:10.1364/OE.23.011378

CORC > 北京大学 > 信息科学技术学院

	Two-stage crossed beam cooling with Li-6 and Cs-133 atoms in microgravity
	Luan, Tian ; Yao, Hepeng ; Wang, Lu ; Li, Chen ; Yang, Shifeng ; Chen, Xuzong ; Ma, Zhaoyuan
刊名	OPTICS EXPRESS
	2015
关键词	BOSE-EINSTEIN CONDENSATION CESIUM
DOI	10.1364/OE.23.011378
英文摘要	Applying the direct simulation Monte Carlo (DSMC) method developed for ultracold Bose-Fermi mixture gases research, we study the sympathetic cooling process of Li-6 and Cs-133 atoms in a crossed optical dipole trap. The obstacles to producing Li-6 Fermi degenerate gas via direct sympathetic cooling with Cs-133 are also analyzed, by which we find that the side-effect of the gravity is one of the main obstacles. Based on the dynamic nature of Li-6 and Cs-133 atoms, we suggest a two-stage cooling process with two pairs of crossed beams in microgravity environment. According to our simulations, the temperature of Li-6 atoms can be cooled to T = 29.5 pK and T/TF = 0.59 with several thousand atoms, which propose a novel way to get ultracold fermion atoms with quantum degeneracy near pico-Kelvin. (C) 2015 Optical Society of America; National Fundamental Research Program of China [SQ2010CB511493, 2011CB921501]; National Natural Science Foundation of China [61027016, 61078026, 10934010, 91336103]; SCI(E); EI; ARTICLE; xuzongchen@pku.edu.cn; zyma@siom.ac.cn; 9; 11378-11387; 23
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/420228]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Luan, Tian,Yao, Hepeng,Wang, Lu,et al. Two-stage crossed beam cooling with Li-6 and Cs-133 atoms in microgravity[J]. OPTICS EXPRESS,2015.
APA	Luan, Tian.,Yao, Hepeng.,Wang, Lu.,Li, Chen.,Yang, Shifeng.,...&Ma, Zhaoyuan.(2015).Two-stage crossed beam cooling with Li-6 and Cs-133 atoms in microgravity.OPTICS EXPRESS.
MLA	Luan, Tian,et al."Two-stage crossed beam cooling with Li-6 and Cs-133 atoms in microgravity".OPTICS EXPRESS (2015).