摘要
针对存在Stark位移的Jaynes-Cummings模型,利用求解相互作用系统约化密度矩阵元的方法,研究热库中的二能级原子简并双光子过程的消相干特性。当外加驱动场消除消相干时,得到驱动场所必须满足的约束方程。
The decoherence characteristics of two-level atoms, which are put in a thermal reservoir and under the degenerate two-photon Jeynes-Cummings model including Stark shift, are studied by calculating the reduced density matrix elements of the interaction system. The restriction equation that must be satisfied by the external controllable driving field when the decoherence is to be eliminated is also derived.
出处
《量子电子学报》
CAS
CSCD
北大核心
2004年第6期819-823,共5页
Chinese Journal of Quantum Electronics
基金
湖南省科技厅中青年科技基金(00JZY2136)湖南省自然科学基金(02JJY2096)资助课题.
