Schrdinger-cat态光场与耦合双原子相互作用系统的量子场熵演化  

The quantum field-entropy evolution properties in system of the two coupled two-level atoms interacting with a Schrdinger-cat state light field

作　　者：王菊霞[1] 安毓英[1] 杨志勇[1] 

机构地区：[1]西安电子科技大学技术物理学院

出　　处：《原子与分子物理学报》2007年第2期403-407,共5页Journal of Atomic and Molecular Physics

基　　金：陕西省自然科学基金(2004A19);陕西省教委专项科研基金(02JK191);渭南师院重点科研基金(06YKF012)

摘　　要：利用全量子理论,研究了Schrdinger-cat态光场与耦合双能级原子相互作用系统在非共振情况下的量子场熵演化特性.结果表明,场—原子系统的量子场熵演化特性不仅与初始平均光子数n0、场与原子的耦合强度g、原子与原子之间的耦合强度ga以及失谐量Δ有着密切的关系,而且与原子的初始状态有关.Utilizing the complete quantum theory, the quantum field-entropy evolution properties in system of the two coupled two-level atoms interacting with a Schr6dinger-cat state light field are studied under the condition of non-resonance. The results indicate that the time evolving of quantum field-entropy is closely related to not only the initial mean photon number no, the coupled intensity g of interaction between the single-mode field-atoms, the coupled intensity ga of dipole-dipole interaction between the two coupled atoms, and non-resonance value △ but also the initial state of atoms.

关 键 词：量子光学 量子信息学 Schǒdinger-cat态 耦合双能级原子 量子场熵演化 

分 类 号：O431.2[机械工程—光学工程]