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经典环境下二能级原子的量子相干性
引用本文:高峰,肖德涛,张登玉,詹孝贵.经典环境下二能级原子的量子相干性[J].量子电子学报,2008,25(6):692-697.
作者姓名:高峰  肖德涛  张登玉  詹孝贵
作者单位:1. 衡阳师范学院物理与电子信息科学系,湖南,衡阳,421008;南华大学核科学技术学院,湖南,衡阳,421001
2. 南华大学核科学技术学院,湖南,衡阳,421001
3. 衡阳师范学院物理与电子信息科学系,湖南,衡阳,421008
基金项目:湖南省自然科学基金  
摘    要:利用密度矩阵方法,在相互作用表象中建立了单个二能级原子与经典电场相互作用的哈密顿算符,求解了二能级原子系统密度矩阵所满足的微分方程.结果表明,密度矩阵非对角元在任意时刻都不为零,在这种相互作用模型中,二能级原子系统能够保持较好的量子相干性.

关 键 词:量子光学  二能级原子  经典电场  密度矩阵  消相干
收稿时间:2008/1/21

Quantum coherence of two-level atom in the classic environment
GAO Feng,XIAO De-tao,ZHANG Deng-yu,ZHAN Xiao-gui.Quantum coherence of two-level atom in the classic environment[J].Chinese Journal of Quantum Electronics,2008,25(6):692-697.
Authors:GAO Feng  XIAO De-tao  ZHANG Deng-yu  ZHAN Xiao-gui
Institution:GAO Feng~(1,2) XIAO De-tao~2 ZHANG Deng-yu~1 ZHAN Xiao-gui~1 1 Department of Physics , Electronic Information Science,Hengyang Normal University,Hengyang 421008,China 2 College of Nuclear Science , Technology,Nanhua University,Hengyang 421001,China
Abstract:The classic method to solve interaction between two-level atom and classic electric field is used to figure the several rates equation directly.The density matrix' method is used to establish the Hamiltonian operator of interaction between single two-level atom and classic electric field,and the differential equation is figured out,which is satisfied the density matrix of two-level atom system.The result shows that the density matrix non-opposite angle element never be zero at any time,and the quantum coher...
Keywords:quantum optics  two-level atom  classic electric field  density matrix  decoherence  
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