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Chin. Phys. B, 2010, Vol. 19(8): 083101    DOI: 10.1088/1674-1056/19/8/083101

Laser pulse design for coherent control of Rydberg lithium atoms

Zhang Xian-Zhou(张现周), Wu Su-Ling(伍素玲), Jiang Li-Juan(蒋利娟), Ma Huan-Qiang(马欢强), and Jia Guang-Rui(贾光瑞)
College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China
Abstract  Using the time-dependent multilevel approach (TDML), this paper studies the dynamics of coherent control of Rydberg lithium atoms and demonstrates that Rydberg lithium atoms can be transferred to states of higher principal quantum number by exposing them to specially designed frequency-chirped laser pulses. The population transfer from n=70 to n=75 states of lithium atoms with efficiency of more than 90% is achieved by means of the sequential adiabatic rapid passages. The results agree well with the experimental ones and show that the coherent control of the population transfer from the lower n to the higher n states can be accomplished by the optimization of the chirping parameters and the intensity of laser field.
Keywords:  coherent control      population transfer      time-dependent multilevel approach (TDML)      super-Gaussian laser pulse  
Received:  30 December 2009      Revised:  06 February 2010      Accepted manuscript online: 
PACS:  37.10.Vz (Mechanical effects of light on atoms, molecules, and ions)  
  31.15.-p (Calculations and mathematical techniques in atomic and molecular physics)  
  37.10.De (Atom cooling methods)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10774039) and the Basic Research Program of Education Bureau of Henan Province of China (Grant No. 072300410130).

Cite this article: 

Zhang Xian-Zhou(张现周), Wu Su-Ling(伍素玲), Jiang Li-Juan(蒋利娟), Ma Huan-Qiang(马欢强), and Jia Guang-Rui(贾光瑞) Laser pulse design for coherent control of Rydberg lithium atoms 2010 Chin. Phys. B 19 083101

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