Population coherent control of Rydberg potassium atom via adiabatic passage  

作　　者：蒋利娟 张现周 贾光瑞 张永慧 夏立华 

机构地区：[1]Department of Physics,Henan Normal University [2]Department of Physics,Xinxiang University

出　　处：《Chinese Physics B》2013年第2期149-153,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No. 10774039);the Natural Science Foundation of Education Bureau of Henan Province,China (Grant Nos. 2010C140002 and 2010A140006);the Research Planning Project of Basic and Advanced Technology of Henan Province,China (Grant No. 112300410025)

摘　　要：The time-dependent multilevel approach（TDMA） and B-spline expansion technique are used to study the coherent population transfer between the quantum states of a potassium atom by a single frequency-chirped microwave pulse.The Rydberg potassium atom energy levels of n=6-15,l=0-5 states in zero field are calculated and the results are in good agreement with other theoretical values.The time evolutions of the population transfer of the six states from n=70 to n=75 in different microwave fields are obtained.The results show that the coherent control of the population transfer from the lower states to the higher ones can be accomplished by optimizing the microwave pulse parameters.The time-dependent multilevel approach（TDMA） and B-spline expansion technique are used to study the coherent population transfer between the quantum states of a potassium atom by a single frequency-chirped microwave pulse.The Rydberg potassium atom energy levels of n=6-15,l=0-5 states in zero field are calculated and the results are in good agreement with other theoretical values.The time evolutions of the population transfer of the six states from n=70 to n=75 in different microwave fields are obtained.The results show that the coherent control of the population transfer from the lower states to the higher ones can be accomplished by optimizing the microwave pulse parameters.

关 键 词：adiabatic rapid passage population transfer multilevel system 

分 类 号：O562.3[理学—原子与分子物理]