激发相干态光场与级联型三能级原子相互作用的场熵与场的线性熵演化特性

The field entropy properties and the field linear entropy properties in the system of the cascade three-level atom interacting with exited coherent states

本文研究了激发相干态光场与级联型三能级原子相互作用过程中场熵及场的线性熵的演化规律,结果表明:场熵和场的线性熵随时间的演化规律基本相同,二者均具有明显的振荡特性,随着光场参数α值或m值的不断增大,场熵和场的线性熵的演化均呈现量子崩塌和复苏现象,且它们随α值增大的变化比随m值增大的变化要快得多,即场熵和场的线性熵更敏感于α值的变化。

In this paper,the field entropy properties and the field linear entropy properties in the system of the cascade three - level atom interacting with excited coherent states have been studied.The results indicate that the field entropy and-the field linear entropy are influenced by the field parameters （α, m）. With the increasing of the value of α or m, the evolution curves of the field entropy and the field linear entropy show that the field entropy and the field linear entropy are more easily influenced by α than by m, besides their properties of quantum collapse and revival.