原子间相互作用对V型三能级原子激光压缩性质的影响

Influence of the interaction between atoms on the squeezing properties of V-type three-level atomic lasers

研究了V型三能级原子玻色-爱因斯坦凝聚体与双模压缩相干态光场相互作用系统中原子激光的两个正交分量的压缩性质,并与Ξ型三能级原子玻色-爱因斯坦凝聚体和双摸压缩相干态相互作用系中原子激光的压缩作了比较.结果表明:压缩相干态光场的初始压缩因子和凝聚体中原子间的相互作用强度对原子激光的两个正交分量的压缩有明显的影响,随光场压缩因子增大原子激光的压缩深度增加,而随原子间相互作用变强,对原子激光的正交分量的压缩的影响变浅.

The squeezing properties of atomic laser coupled output from the system of V-type three-level atomic Bose-Einstein condensate interacting with two-mode squeezed coherent light field are studied, and compared with the system of E-type three-level atomic Bose-Einstein condensate interacting with two-mode squeezed coherent light field. The results show that the fluctuations of two quadrature components of the atomic laser can be squeezed and the interaction between atoms in Bose-Einstein condensate is disadvantageous to the squeeze of atomic lasers. The maximum depth of squeezing are closely correlated to the interacting action. The depth are decreased with the interaction increasing.