Dynamic splitting and merging of an atom cloud on an atom chip
Ke Min(柯敏),Yan Bo(颜波), Cheng Feng(程峰), and Wang Yu-Zhu(王育竹)†
The Laboratory of Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China; Center for Cold Atom Physics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract Chip-based atom interferometers bring together the advantages of atom chips and Bose--Einstein condensates. Their central prerequisite is that a condensate can be coherently split into two halves with a determined relative phase. This paper demonstrates the dynamical splitting and merging of an atom cloud with two U-wires on an atom chip. Symmetrical and asymmetrical splittings are realized by applying a bias field with dif\/ferent directions and magnitudes. The trajectories of the splitting are consistent with theoretical calculations. The atom chip is a good candidate for constructing an atom interferometer.
Received: 09 December 2008
Revised: 23 February 2009
Accepted manuscript online:
PACS:
03.75.Dg
(Atom and neutron interferometry)
Fund: Project supported by the State Key
Basic Research Program of China (Grant No 2006CB921202) and the
National Natural Science Foundation of China (Grant No 10334050).
Cite this article:
Ke Min(柯敏),Yan Bo(颜波), Cheng Feng(程峰), and Wang Yu-Zhu(王育竹) Dynamic splitting and merging of an atom cloud on an atom chip 2009 Chin. Phys. B 18 4823
Bose--Einstein condensation on an atom chip Yan Bo(颜波), Cheng Feng(程峰), Ke Min(柯敏), Li Xiao-Lin(李晓林), Tang Jiu-Yao(唐九耀), and Wang Yu-Zhu(王育竹). Chin. Phys. B, 2009, 18(10): 4259-4263.
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