量子电子学报, 2009, 26 (2): 204, 网络出版: 2010-05-24
玻色-爱因斯坦凝聚原子与Schr dinger猫态相互作用系统中的压缩特性
Squeezing properties of Schr dinger cat states field interacting with atomic Bose-Einstein condensate
量子光学 玻色-爱因斯坦凝聚 原子激光 Schr?dinger猫态 压缩原子激光 quantum optics Bose-Einstein condensate atomic laser Schr?dinger cat state squeezed atomic laser
摘要
利用全量子理论,研究了玻色-爱因斯坦凝聚原子与Schr?dinger猫态相互作用系统中, 光场和原子激光的压缩特性。 结果表明: 在系统中,偶相干态、奇相态分别与玻色-爱因斯坦凝聚原子相互作用,偶相干态、奇相态光场和原子激光均不呈现压缩效应。 而Yurke-Stoler相干态光场和原子激光呈现压缩效应。 在强场 (|a|=1)情况下,三种不同光场的两种压缩现象均不产生。 光场和原子激光的压缩特性主要受初始光强和耦合常数的影响。
Abstract
The squeezing properties of the Schr?dinger cat states field interacting with Bose-Einstein condensate of two-level atom are studied by means of quantum theory. The results show that the optical field and the atomic laser of even coherent state and odd coherent state interacting with Bose-Einstein condensate appear no squeezing effects, whereas the optical fields and the atomic laser of Yurke-Stoler coherent state show squeezing effects. The intensity of the initial light field and values of the coupling constant have the influences on the squeezing properties of the field and atomic laser.
格日乐, 萨楚尔夫, 张彩花. 玻色-爱因斯坦凝聚原子与Schr dinger猫态相互作用系统中的压缩特性[J]. 量子电子学报, 2009, 26(2): 204. Gerile, Sachuerfu, ZHANG Cai-hua. Squeezing properties of Schr dinger cat states field interacting with atomic Bose-Einstein condensate[J]. Chinese Journal of Quantum Electronics, 2009, 26(2): 204.