虚光场对双模压缩真空场与原子相互作用系统中光子统计性质的影响  

INFLUENCE OF A VIRTUAL PHOTON FIELD ON THE STATISTIC PROPERTIES OF PHOTONS IN A SYSTEM OF TWO-MODE SQUEEZED VACCUM FIELD INTERACTING WITH ATOMS

作　　者：黄春佳[1] 厉江帆[1] 周明[1] 方家元[1] 

机构地区：[1]长沙电力学院物理与信息工程系,长沙410077

出　　处：《物理学报》2001年第10期1920-1924,共5页Acta Physica Sinica

摘　　要：研究了非旋波近似下双模压缩真空场与二能级原子相互作用系统中光子的统计性质 ,着重讨论了虚光场效应对光子统计性质的影响 .数值计算结果表明 ,虚光场对光子统计性质的影响主要表现为量子噪声 ,量子噪声的大小依赖于光场的初始压缩因子和原子的初始状态 ,且与原子 光场耦合强度有关 .The statistic properties of photons in a system of two-mode squeezed vacuum field interacting with a two-level atom are studied without the rotating-wave approximation by means of quantum theory, and the influence of the virtual-photon process on the statistic properties of photons is discussed emphatically. The results obtained using a numerical method indicate that the influence of the virtual-photon process on the statistic properties of photons qives rise to quantum chaos, that is related to the initial state parameters of the system.

关 键 词：虚光场 相互作用 非旋波近似 双模压缩真空场 二能级原子 光子 统计性质 量子光学 

分 类 号：O431.2[机械工程—光学工程] O572.31[理学—光学]