研究了三能级原子系综与相干控制场以及量子探测场的相互作用下的受激拉曼系统.运用量子理论推导出了该受激拉曼系统中由于量子场真空涨落引起的量子噪声以及受激散射的量子化光场噪声谱,并且数值计算了注入拥有非经典涨落的量子探测场,真空涨落所引起的量子噪声谱.
We study a three-level atom assemble interacting with a pump field and a quantum probe field,and derive the Langevin quantum noise operators and quantum noise spectrum due to vacuum fluctuations via quantum theory.We calculate the output noise spectrum of active Raman scattering field through the medium when introducing one nonclassical squeezing field.