Transporting, splitting and merging of atomic ensembles in a chip trap -: art. no. 3

被引:51
作者
Hommelhoff, P [1 ]
Hänsel, W [1 ]
Steinmetz, T [1 ]
Hänsch, TW [1 ]
Reichel, J [1 ]
机构
[1] Univ Munich, Max Planck Inst Quantenopt, D-80799 Munich, Germany
来源
NEW JOURNAL OF PHYSICS | 2005年 / 7卷
关键词
D O I
10.1088/1367-2630/7/1/003
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a toolbox for cold atom manipulation with time-dependent magnetic fields generated by an atom chip. Wire layouts, detailed experimental procedures and results are presented for the following experiments: use of a magnetic conveyor belt for positioning of cold atoms and Bose-Einstein condensates (BECs) with a potential resolution of 2 nm; splitting of thermal clouds and BECs in adjustable magnetic double-well potentials; and controlled splitting of a cold reservoir. The devices that enable these manipulations can be combined with each other. We demonstrate this by combining reservoir splitter and conveyor belt to obtain a cold atom dispenser. We discuss the importance of these devices for quantum information processing, atom interferometry and Josephson junction physics on the chip. For all devices, absorption-image video sequences are provided to demonstrate their time-dependent behaviour.
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页数:17
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