非阿贝尔腔量子电动力学模型下偏振光场的影响  

Influence of Polarized Light in Non-Abelian Cavity Quantum Electrodynanics Model

作　　者：谢良文[1] 王发强[1] 梁瑞生[1] 靳玮[1] 郭建军[1] 

机构地区：[1]华南师范大学信息光电子科技学院光子信息技术实验室,广东广州510006

出　　处：《光学学报》2012年第5期244-251,共8页Acta Optica Sinica

基　　金：国家973计划(2007CB307002);广东省自然科学基金(815106320100051)资助课题

摘　　要：通过使用场正交算符,而不是传统的玻色算符,研究了非阿贝尔腔量子电动力学(QED)模型中原子和偏振光场的相互作用。讨论了初始双模偏振光场对于原子布居数反转以及偏振光场的压缩特性的影响。结果表明,原子布居数反转的演化不仅与偏振椭圆的相位角有关,也与偏振椭圆的椭率角有关;只有当偏振椭圆是右旋圆偏振光时,原子布居数反转随时间的演化基本不变,趋近于初始值0,而当偏振椭圆是左旋圆偏振光时,原子布居数反转随时间的演化呈现周期性的崩塌复苏变化。另外,当初始光场是左旋圆偏振光时,光场可以出现周期性的压缩;而当初始光场是右旋圆偏振光时,光场的压缩不会持续出现。In non-Abelian cavity quantum electrodynamics（QED） model,by using field quadrature operators instead of typical boson ladder operators,the interaction properties between atoms and polarized light are investigated.The effects of the initial two-mode polarized light on atomic population reversion and squeezing properties of polarized light are also examined.The results show that relative phase angle and ellipticity angle are both important to the evolution of the atomic population reversion,which will not be changed and goes to the initial value 0 for the right-handed circularly polarized light,but which will present periodic collapse-revival phenomenon for the left-handed circularly polarized light.Furthermore,the left-handed circularly polarized light can be periodically squeezed for the left-handed circularly polarized light,however,it could not appear continually for the right-handed circularly polarized light.

关 键 词：量子光学 双模偏振光场 对称分裂算符 Jahn-Teller模型 压缩 

分 类 号：O431[机械工程—光学工程]