Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline

doi:10.1088/1674-1056/21/9/094205

中国物理B ›› 2012, Vol. 21 ›› Issue (9): 94205-094205.doi: 10.1088/1674-1056/21/9/094205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline

李小勇^{a b}, 王国利^b, 周效信^b

a Experimental Center, Northwest University for Nationalities, Lanzhou 730030, China;
b College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China

收稿日期:2011-04-24 修回日期:2012-02-20 出版日期:2012-08-01 发布日期:2012-08-01
基金资助:
Project supported by the Special Funds for the Projects of Basic Scientific Research and Operating Expenses of the Central Universities, Northwest University for Nationalities, China (Grant No. zyz2012103) and the National Natural Science Foundation of China (Grant Nos. 11044007 and 11064013).

Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline

Li Xiao-Yong (李小勇)^{a b}, Wang Guo-Li (王国利)^b, Zhou Xiao-Xin (周效信)^b

a Experimental Center, Northwest University for Nationalities, Lanzhou 730030, China;
b College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China

Received:2011-04-24 Revised:2012-02-20 Online:2012-08-01 Published:2012-08-01
Contact: Li Xiao-Yong E-mail:lxycock@163.com
Supported by:
Project supported by the Special Funds for the Projects of Basic Scientific Research and Operating Expenses of the Central Universities, Northwest University for Nationalities, China (Grant No. zyz2012103) and the National Natural Science Foundation of China (Grant Nos. 11044007 and 11064013).

摘要/Abstract

摘要： With the B-spline expansion technique and a model potential of the alkali atoms, the properties of frequency-modulated excitation of Rydberg potassium atoms in a static electric field and a microwave field are investigated by using the time-dependent two-level approach. We successfully reproduce the square wave oscillations in the low frequency, the stair step population oscillations in the intermediate frequency, and the multiphoton transitions in the high frequency with respect to the unmodulated Rabi frequency, which have been observed experimentally by Noel et al. [Phys. Rev. A 58 2265 (1998)]. Furthermore, we also numerically obtain the discretized Rabi oscillations predicted in the Landau-Zener accumulation model.

关键词: B-spline, frequency-modulated field, two-level approach, model potential

Abstract: With the B-spline expansion technique and a model potential of the alkali atoms, the properties of frequency-modulated excitation of Rydberg potassium atoms in a static electric field and a microwave field are investigated by using the time-dependent two-level approach. We successfully reproduce the square wave oscillations in the low frequency, the stair step population oscillations in the intermediate frequency, and the multiphoton transitions in the high frequency with respect to the unmodulated Rabi frequency, which have been observed experimentally by Noel et al. [Phys. Rev. A 58 2265 (1998)]. Furthermore, we also numerically obtain the discretized Rabi oscillations predicted in the Landau-Zener accumulation model.

Key words: B-spline, frequency-modulated field, two-level approach, model potential

中图分类号: (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

42.50.Hz

42.50.Md (Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency) 32.30.Bv (Radio-frequency, microwave, and infrared spectra)

李小勇, 王国利, 周效信. Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline[J]. 中国物理B, 2012, 21(9): 94205-094205.

Li Xiao-Yong (李小勇), Wang Guo-Li (王国利), Zhou Xiao-Xin (周效信). Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline[J]. Chin. Phys. B, 2012, 21(9): 94205-094205.

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Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline

Study of frequency-modulated excitation of Rydberg potassium atoms by using B-spline

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