中国科学院大学学报2018，Vol.35Issue(2)：154-159,6.DOI:10.7523/j.issn.2095-6134.2018.02.002
离子-原子混合阱中冷Rb原子对Rb+离子的协同冷却
Sympathetic cooling of Rb + ions by cold Rb atoms in an ion-neutral hybrid trap
摘要
Abstract
Sympathetic cooling of Rb + ions by cold Rb atoms is studied in an ion-neutral hybrid trap.The effect of a linear Paul trap (LPT) parameter q1,2 on the sympathetic cooling is studied by measuring the changes in ion number Ni and temperature Ti after interaction with cold atoms.The sympathetic cooling effect is observed with 0.3 ≤ | q1,2| ≤0.8.At the | q1,2| value of 0.32,ions are cooled from initial (2 010 ± 380) K to (325 ± 35) K and the lifetime of ions is extended from 7 s to 15 s via sympathetic cooling.These findings are very useful for cooling of atomic and molecular ions,especially for the ions without available optical channels.关键词
协同冷却/离子-原子碰撞/离子-原子混合阱Key words
sympathetic cooling/ion-atom collisions/ion-neutral hybrid trap分类
数理科学引用本文复制引用
吕双飞,贾凤东,李晓康,刘晋允,许翔源,薛平,钟志萍..离子-原子混合阱中冷Rb原子对Rb+离子的协同冷却[J].中国科学院大学学报,2018,35(2):154-159,6.基金项目
Supported by Beijing Natural Science Foundation (1164016),National Natural Science Foundation of China (11604334,61227807,61575108),and Tsinghua Initiative Scientific Research Program (2013THZ02-3) （1164016）
