Simulation and Optimization of Miniature Ring-Endcap Ion Traps

摘要: With the decrease in dimension of ion traps employed optical frequency standards and precision spectroscopy, sensitivity trapping behavior to trap geometry is more prominent. We present a guide for design construction miniature single confinement, propose an optimized combination r(ring)/r(endcap) approximate 0.5 z(0) r(0) within range = 0.7 +/- 0.2 mm. Compared with used by Huang et al. [Phys. Rev. A 84 (2011) 053841], can lead increase pseudo-potential than 20% reduction on potential anharmonicity 90%. The improvements make closer ideal hyperboloidal confine tightly benefit weaker micro-motion. Considering imperfection electrodes machining alignment, we also demonstrate importance symmetry, especially two endcap electrodes.