Vacuum Rabi Splitting and Dynamics of the Jaynes–Cummings Model for Arbitrary Coupling  

作　　者：ZHANG Yu-Yu CHEN Qing-Hu ZHU Shi-Yao 张瑜瑜;陈庆虎;朱诗尧(Center for Modern Physics,Chongqing University,Chongqing 400044;Beijing Computational Science Research Center,Beijing 100084;Department of Physics,Zhejiang University,Hangzhou 310027)

机构地区：[1]Center for Modern Physics,Chongqing University,Chongqing 400044 [2]Beijing Computational Science Research Center,Beijing 100084 [3]Department of Physics,Zhejiang University,Hangzhou 310027

出　　处：《Chinese Physics Letters》2013年第11期94-98,共5页中国物理快报（英文版）

基　　金：Supported by the National Basic Research Program of China(2011CB922203 and 2009CB929104);the National Natural Science Foundation of China(11174026,11174254 and 11104363);the Research Fund for the Doctoral Program of Higher Education of China(20110191120046);the Fundamental Research Funds for the Central Universities under Grant(CQDXWL-2013-Z014).

摘　　要：The effects of counter-rotating terms(CRTs)on Rabi splitting and the dynamic evolution of atomic population in the Jaynes–Cummings model are studied with a coherent-state approach.When the coupling strength increases,the Rabi splitting becomes of multi-Rabi frequencies for the initial state of an excited atom in a vacuum field,and the collapses and revivals gradually disappear,and then reappear with quite good periodicity.Without the rotating-wave approximation(RWA),the initial excited state contains many eigenstates rather than two eigenstates under the RWA,which results in the multi-peak emission spectrum.An analytical approximate solution for the strong coupling regime is obtained,which gives a new oscillation frequency and explains the recovery of collapses and revivals due to the equal energy spacing.

关 键 词：spectrum ROTATING EXCITED 

分 类 号：O41[理学—理论物理]