The Properties of a Light Field Interacting with a Four-level Atom
Zhengdong Liu, Shi-Yao Zhu, Xiao-shen Li · Journal of Modern Optics · 1988
The system comprising a four-level cascade atom and a light field of single mode with frequency Ω is investigated. The mean photon number, coherence and squeezed states for the light field are discussed. 36% squeezing has been found.