深圳大学学报（理工版）2025，Vol.42Issue(3)：357-362,6.DOI:10.3724/SP.J.1249.2025.03357
基于单个174Yb+离子结晶体高分辨空间热分布的稳定性优化
Stability optimization based on high-resolution spatial thermal distribution of a single 174Yb+ion
摘要
Abstract
Trapped ion systems play a vital role in fields such as quantum information processing and optical frequency standards.Low-energy,highly stable trapped ions enable precise quantum manipulation and significantly reduce Doppler effect.However,ion heating presents a major challenge to maintaining such stability.In our work,a high-magnification optical imaging system is employed to achieve micron-level resolution imaging of a single 174Yb+ion crystal.By analyzing the ion's spatial thermal distribution and applying an adaptive Gaussian filtering technique,the root mean square linewidth is accurately extracted,enabling accurate temperature measurements.Experimentally,the temperature(or energy)of a single 174Yb+ion is progressively reduced from 1 400 mK to 260 mK.Various heating mechanisms become increasingly apparent as the ion temperature decreases.These findings provide a foundation for further optimization of ion stability.This study not only presents a practical approach for evaluating and reducing the temperature of trapped ions,thereby improving their stability,but also paves the way for exploring other ion heating effects.关键词
原子分子物理学/囚禁离子/离子稳定性/空间热分布/均方根线宽/囚禁频率/加热效应Key words
atomic and molecular physics/trapped ions/stability of ions/spatial thermal distribution/root mean square linewidth/trapping frequency/heating effect分类
数理科学引用本文复制引用
牛海坡,郑鹏程,黄祺寅,黄泽锐,张松骞,刘培亮..基于单个174Yb+离子结晶体高分辨空间热分布的稳定性优化[J].深圳大学学报（理工版）,2025,42(3):357-362,6.基金项目
National Natural Science Foundation of China(11904418) （11904418）
Key-area Research and Development Program of Guangdong Province(2019B030330001) 国家自然科学基金资助项目(11904418) （2019B030330001）
广东省重点领域研发计划资助项目(2019B030330001). （2019B030330001）
