中国物理B ›› 2016, Vol. 25 ›› Issue (1): 13301-013301.doi: 10.1088/1674-1056/25/1/013301

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Stark effect of the hyperfine structure of ICl in its rovibronic ground state: Towards further molecular cooling

Qing-Hui Wang(王庆辉), Xu-Ping Shao(邵旭萍), Xiao-Hua Yang(杨晓华)   

  1. 1. School of Science, Nantong University, Nantong 226019, China;
    2. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 收稿日期:2015-07-09 修回日期:2015-09-11 出版日期:2016-01-05 发布日期:2016-01-05
  • 通讯作者: Xiao-Hua Yang E-mail:xhyang@ntu.edu.cn,xhyang@phy.ecnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11034002), the National Basic Research Program of China (Grant No. 2011CB921602), and Qing Lan Project, China.

Stark effect of the hyperfine structure of ICl in its rovibronic ground state: Towards further molecular cooling

Qing-Hui Wang(王庆辉)1, Xu-Ping Shao(邵旭萍)1, Xiao-Hua Yang(杨晓华)1,2   

  1. 1. School of Science, Nantong University, Nantong 226019, China;
    2. State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • Received:2015-07-09 Revised:2015-09-11 Online:2016-01-05 Published:2016-01-05
  • Contact: Xiao-Hua Yang E-mail:xhyang@ntu.edu.cn,xhyang@phy.ecnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11034002), the National Basic Research Program of China (Grant No. 2011CB921602), and Qing Lan Project, China.

摘要: Hyperfine structures of ICl in its vibronic ground state due to the nuclear spin and electric quadruple interactions are determined by diagonalizing the effective Hamiltonian matrix. Furthermore, the Stark sub-levels are precisely determined as well. The results are helpful for electro-static manipulation (trapping or further cooling) of cold ICl molecules. For example, an electric field of 1000 V/cm can trap ICl molecules less than 637 μK in the lowest hyperfine level.

关键词: hyperfine structure, Stark effect

Abstract: Hyperfine structures of ICl in its vibronic ground state due to the nuclear spin and electric quadruple interactions are determined by diagonalizing the effective Hamiltonian matrix. Furthermore, the Stark sub-levels are precisely determined as well. The results are helpful for electro-static manipulation (trapping or further cooling) of cold ICl molecules. For example, an electric field of 1000 V/cm can trap ICl molecules less than 637 μK in the lowest hyperfine level.

Key words: hyperfine structure, Stark effect

中图分类号:  (Fine and hyperfine structure)

  • 33.15.Pw
32.60.+i (Zeeman and Stark effects)