研究了对相干态光场与一个Λ型三能级原子的共振相互作用中的各种非经典性质,例如光场的反群聚效应,Cauchy-Schwart不等式违背,光场的双模压缩性质等,并发现这些非经典性质在对原子态进行测量后将得到增强.
This paper is concentrated on the nonclassical properties of the pair coherent states during the interaction with a three-level Λ-type atom, such as antibunching effect, violation of Cauchy-Schwarz inequality and two-mode squeezing. Meanwhile,we find these nonclassical properties can be enhanced in the case that the atom is selectively measured.