Automatic compensation of magnetic field for a rubidium space cold atom clock

CORC > 上海光学精密机械研究所 > 中国科学院上海光学精密机械研究所 > 量子光学重点实验室

	Automatic compensation of magnetic field for a rubidium space cold atom clock
	Liu L(刘亮); Li L(李琳); Ji JW(吉经纬); Ren W(任伟); Zhao X(赵鑫); Peng XK(彭向凯); Xiang JF(项静峰); Lv DS(吕德胜)
刊名	Chin. Phys. B
	2016
卷号	25 期号:7
通讯作者	dslv@siom.ac.cn ; liang.liu@siom.ac.cn
英文摘要	When the cold atom clock operates in microgravity around the near-earth orbit, its performance will be affected by the fluctuation of magnetic field. A strategy is proposed to suppress the fluctuation of magnetic field by additional coils, whose current is changed accordingly to compensate the magnetic fluctuation by the linear and incremental compensation. The flight model of the cold atom clock is tested in a simulated orbital magnetic environment and the magnetic field fluctuation in the Ramsey cavity is reduced from 17 nT to 2 nT, which implied the uncertainty due to the second order Zeeman shift is reduced to be less than 2 x 10(-16). In addition, utilizing the compensation, the magnetic field in the trapping zone can be suppressed from 7.5 mu T to less than 0.3 mu T to meet the magnetic field requirement of polarization gradients cooling of atoms.
收录类别	SCI
资助信息	Ministry of Science and Technology of China [2013YQ09094304]; Youth Innovation Promotion Association, Chinese Academy of Sciences; National Natural Science Foundation of China [11034008, 11274324]
WOS记录号	WOS:000384225800013
内容类型	期刊论文
源URL	[http://ir.siom.ac.cn/handle/181231/27765]
专题	上海光学精密机械研究所_量子光学重点实验室
作者单位	中国科学院上海光学精密机械研究所
推荐引用方式 GB/T 7714	Liu L,Li L,Ji JW,et al. Automatic compensation of magnetic field for a rubidium space cold atom clock[J]. Chin. Phys. B,2016,25(7).
APA	刘亮.,李琳.,吉经纬.,任伟.,赵鑫.,...&吕德胜.(2016).Automatic compensation of magnetic field for a rubidium space cold atom clock.Chin. Phys. B,25(7).
MLA	刘亮,et al."Automatic compensation of magnetic field for a rubidium space cold atom clock".Chin. Phys. B 25.7(2016).