多导线对称分布原子磁分束器和干涉仪设计分析

提出了采用多根对称分布载流导线构成原子分束器的方法，包括三导线和四导线磁导引。阐述了原子分束器的分束机制，用Ansoft Maxwell 2D软件计算给出了部分载流导线移动到不同位置时的磁场分布图。通过分析了导引中心的变化，发现只要通过改变载流导线之间的相对位置就可以来实现从单路到双路导引和三路导引的转换。由此分别设计由3根对称分布载流导线构成的原子双路分束器和4根对称分布载流导线构成三路分束器，然后运用Monte Carlo方法模拟验证其原子分束功能。最后以三线对称分布分束器为基础构成Mach-Zehnder原子磁干涉仪。

Calculation and Analysis of Cold Atom Guiding Captivity Magnetic Field

Several current-carrying wire distributing symmetrically constitute atom beamsplitter, including three and four wire magnetic guiding. Describes beamsplitting mechanism,Magnetic field distributions when partial current-carrying wire moved to different positions were given by using Ansoft Maxwell 2D . By analyzing the changes in guiding center,it has been found that changing the relative position between the current-carrying wires it can be achieved the conversion.from single to double and three way guiding.Dual beam splitter composed of the three symmetric distribution atoms carrying wires and three way splitter composed of four symmetrical distribution current-carrying wires were designed.then applied Monte Carlo simulations to verify the atom beamsplitting function.finally it was constituted that Mach-Zehnder atom magnetic interferometer based on three wire symmetrical beam splitter.