Research on the ions’axial temperature of a sympathetically-cooled ^(113)Cd^(+)ion crystal  

作　　者：Nong-Chao Xin Sheng-Nan Miao Hao-Ran Qin Li-Ming Guo Ji-Ze Han Hua-Xing Hu Wen-Xin Shi Jian-Wei Zhang Li-Jun Wang 辛弄潮;苗胜楠;秦浩然;郭黎明;韩济泽;胡华星;施文心;张建伟;王力军(State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments,Tsinghua University,Beijing 100084,China;Department of Physics,Tsinghua University,Beijing 100084,China)

机构地区：[1]State Key Laboratory of Precision Measurement Technology and Instruments,Department of Precision Instruments,Tsinghua University,Beijing 100084,China [2]Department of Physics,Tsinghua University,Beijing 100084,China

出　　处：《Chinese Physics B》2021年第11期318-324,共7页中国物理B（英文版）

基　　金：Project supported by the Beijing Natural Science Foundation(Grant No.1202011);the Tsinghua University Initiative Scientific Research Program,the National Natural Science Foundation of China(Grant No.12073015);the National Key Research and Development Program of China(Grant No.2016YFA0302101).

摘　　要：Molecular dynamics simulation of a sympathetically-cooled ^(113)Cd^(+)ion crystal system is achieved.Moreover,the relationship between ions’axial temperature and different electric parameters,including radio frequency voltage and endcap voltage is depicted.Under stable trapping condition,optimum radio frequency voltage,corresponding to minimum temperature and the highest cooling efficiency,is obtained.The temperature is positively correlated with end-cap voltage.The relationship is also confirmed by a sympathetically-cooled ^(113)Cd^(+) microwave clock.The pseudo-potential model is used to illustrate the relationship and influence mechanism.A reasonable index,indicating ions’temperature,is proposed to quickly estimate the relative ions’temperature.The investigation is helpful for ion crystal investigation,such as spatial configuration manipulation,sympathetic cooling efficiency enhancement,and temporal evolution.

关 键 词：ion temperature sympathetic cooling electric parameters microwave clock 

分 类 号：O643.1[理学—物理化学]