相互作用原子BEC诱导的双模光场压缩特性

Squeezing Effect of Two-mode Squeezed Light Field Caused by Bose-Einstein Condensate Composed of Interactive Atoms

考虑原子间的相互作用,给出了旋波近似下双模光场与V型三能级原子玻色-爱因斯坦凝聚体(BEC)相互作用系统的哈密顿量,求解了系统的动力学方程,研究了原子间的相互作用对光场正交压缩特性的影响.结果表明:原子间的相互作用缩短了光场正交分量的涨落随时间变化的周期.

When considering the interaction between atoms,the Hamitonian operator of a system of two-mode light field interacting with Bose-Einstein condensate（BEC） of V-type threelevel atoms is suggested within the rotating-wave approximation and Bogoliubov approximation. The system＇s dynamical equations are solved. The influence of the interaction between atoms in the BEC on the quadrature squeezing properties of two-mode squeezed light interacting with atomic BEC is studied. Theresults show that the interaction between atoms in BEC shortens the period of the fluctuations of two quadrature components of light.