Frequency-modulated excitation of Rydberg potassium atoms by using B-spline

By using 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 reproduc...

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Published inChinese physics B Vol. 21; no. 9; pp. 279 - 285
Main Author 李小勇 王国利 周效信
Format Journal Article
LanguageEnglish
Published 01.09.2012
Subjects
B-样条
B样条
Electric potential
Excitation
High frequencies
Mathematical models
Microwaves
Nuclear power generation
Oscillations
Potassium
Rabi frequency
扩展技术
拉比振荡
激发
碱金属原子
钾原子
频率调制
Online AccessGet full text
ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/21/9/094205

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Summary:By using 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.
Bibliography:By using 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.
Li Xiao-Yong, Wang Guo-Li, and Zhou Xiao-Xin a） Experimental Center, Northwest University for Nationalities, Lanzhou 730030, China b） College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China
B-spline, frequency-modulated field, two-level approach, model potential
11-5639/O4
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/21/9/094205