Single layer atom chip for magnetically trapping one-dimensional array of ultracold atoms  

作　　者：程峰 颜波 柯敏 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》2010年第8期338-343,共6页中国物理B（英文版）

基　　金：Project supported by the National Basic Research Program of China(Grant No.2006CB921202);the National Natural Science Foundation of China(Grant No.10974210)

摘　　要：We propose a wire configuration to create a one-dimensional （1D） array of magnetic microtraps for trapping ultracold atoms. The configuration is formed by replacing the central part of the Z-wire pattern with a zigzag wire. We simulate the performance of this pattern by the finite element method which can take both the width and depth of the wire into consideration. The result of simulation shows that this configuration can create magnetic microtraps which can be separated and combined by changing bias magnetic field. We manage to split Z-wire trap and prove that similar result can occur for the new wire configuration. The fabrication processes of the atom chip are also introduced. Finally we discuss the loading method.We propose a wire configuration to create a one-dimensional （1D） array of magnetic microtraps for trapping ultracold atoms. The configuration is formed by replacing the central part of the Z-wire pattern with a zigzag wire. We simulate the performance of this pattern by the finite element method which can take both the width and depth of the wire into consideration. The result of simulation shows that this configuration can create magnetic microtraps which can be separated and combined by changing bias magnetic field. We manage to split Z-wire trap and prove that similar result can occur for the new wire configuration. The fabrication processes of the atom chip are also introduced. Finally we discuss the loading method.

关 键 词：atom chip magnetic micro-trap array magnetic lattices 

分 类 号：O562[理学—原子与分子物理]