Simulation and Optimization of Miniature Ring-Endcap Ion Traps

作     者：CAO Jian 

作者机构：State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 Key Laboratory of Atomic Frequency Standards Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan 430071 Graduate University of Chinese Academy of Sciences Beijing 100080 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2014年第31卷第4期

页      面：46-49页

核心收录：

学科分类：080706[工学-化工过程机械] 08[工学] 0807[工学-动力工程及工程热物理] 0803[工学-光学工程] 

基　　金：Supported by the National High-Technology Research and Development Program of China under Grant No 2012AA1207  and the National Natural Science Foundation of China under Grant Nos 10774161 and 11174326 

主　　题：Traps Simulation decrease 

摘      要：With the decrease in dimension of ion traps employed in optical frequency standards and precision spectroscopy, the sensitivity of trapping behavior to trap geometry is more and more prominent. We present a guide for the design and construction of a miniature trap for a single ion confinement, and propose an optimized combination of Tring/Tendcap ≈0.5 and z0≈ ro within the range of To = 0.7 ± 0.2 mm. Compared with the trap used by Huang et al. [Phys. Rev. A 84 （2011）053841], the design can lead to an increase in trap pseudo-potentiM of more than 20% and a reduction on potential anharmonicity of more than 90%. The improvements make the trap closer to an ideal hyperboloidal trap to confine a single ion tightly with the benefit of weaker micro-motion. Considering the imperfection of electrodes machining and traps Mignment, we also demonstrate the importance of trap symmetry, especially on two endcap electrodes.