CAJ | 학술논문

在压缩真空态光场和二能级原子玻色-爱因斯坦凝聚体相互作用系统中, 应用全量子理论, 采用非旋波近似, 研究了光场的压缩特性以及原子本征频率、原子-光场的耦合系数、光场初始压缩因子以及虚光场对系统光场压缩特性的影响. 研究表明, 光场的两个正交分量均被周期性压缩, 其压缩深度与光场初始压缩因子有关, 光场与原子的耦合系数决定了光场的量子崩塌-回复频率,虚光场效应使得光场的压缩深度增强.
재압축진공태광장화이능급원자파색-애인사탄응취체상호작용계통중, 응용전양자이론, 채용비선파근사, 연구료광장적압축특성이급원자본정빈솔、원자-광장적우합계수、광장초시압축인자이급허광장대계통광장압축특성적영향. 연구표명, 광장적량개정교분량균피주기성압축, 기압축심도여광장초시압축인자유관, 광장여원자적우합계수결정료광장적양자붕탑-회복빈솔,허광장효응사득광장적압축심도증강.
The squeezing properties of light field are investigated without rotating-wave approximation in the system of light field interacting with two-level atomic Bose-Einstein condensate. We discuss the influences of atomic eigenfrequency, interaction intensity between light field and atoms, squeeze factor of light field and virtual photon field on the squeezing properties. The results show that two quadrature components of light field can be squeezed periodically. The degree of squeezing light field have something to do with the initial squeeze factor of light field. The collapse and revival frequency of light field fluctuation depends on interaction intensity between light field and atoms. The effect of virtual photon field deepens the depth of squeezing light field.