外场驱动对Tavis-Cummings模型中量子态保真度的影响  

Effect of external field on the fidelity of quantum states in the two-atom Tavis-Cummings model

作　　者：王忠纯[1] 

机构地区：[1]盐城师范学院物理系,盐城224002

出　　处：《物理学报》2006年第9期4624-4630,共7页Acta Physica Sinica

基　　金：江苏省高校自然科学研究项目(批准号:05KJD140247);盐城师范学院教授科研基金资助的课题.~~

摘　　要：求出了原子受到外部经典场驱动时,双原子T-C模型中量子态的保真度.通过数值分析,研究了外场以及特定初态下原子间偶极-偶极相互作用对量子态保真度的影响.The fidelities of quantum states in the two-atom Tavis-Cummings model where the atoms are driven by an external classical field are derived. The influence of the external field and the dipole-dipole interaction of the atoms in a special initial state on the fidelity is discussd.

关 键 词：量子态保真度 Tavis—Cummings模型 经典外场 

分 类 号：O431.2[机械工程—光学工程]