Dynamic splitting and merging of an atom cloud on an atom chip  

作　　者：柯敏 颜波 程峰 王育竹 

机构地区：[1]The Laboratory of Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]Center for Cold Atom Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2009年第11期4823-4828,共6页中国物理B（英文版）

基　　金：Project supported by the State Key Basic Research Program of China (Grant No 2006CB921202);the National Natural Science Foundation of China (Grant No 10334050)

摘　　要：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 different 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.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 different 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.

关 键 词：atom chip dynamic splitting and merging chip-based atom interferometers 

分 类 号：O562[理学—原子与分子物理]