An effective pumping method for increasing atomic utilization in a compact cold atom clock

• 作者: Xin-Chuan Ouyang Bo-Wen Yang Jian-Liao Deng Jin-Yin Wan Ling Xiao Hang-Hang Qi Qing-Qing Hu Hua-Dong Cheng
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（8）
• 所属期刊栏目: ATOMIC AND MOLECULAR PHYSICS
• 页码范围: 357-362
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abfccd

摘要

We propose a simple pumping method to increase the effective population of cold atoms in the clock state and in-vestigate the factors which affect the pumping efficiency in cold atom systems.We report the theory and demonstrate the corresponding experiment in an 87Rb integrating sphere cold atom clock.The experimental results show that the population of cold atoms in the Zeeman sublevel |F =2,mF =0〉 is approximately 1.62 times that of the result using optical pumping alone.This method can also be applied to increase the effective population in any one of the target Zeeman sublevels in other cold atom systems.