期刊论文

中文

激光杂志

0253-2743

2002

23

6

39-41

10.3969/j.issn.0253-2743.2002.06.018

湖南省科技厅中青科技基金 （0 0JZY2 13 6）资助课题；

本校为第一机构

采用非旋波近似，研究两能级原子与热辐射场单光子作用过程。当外加驱动场时，通过分析置于热辐射场中的两能级原子与外加驱动场相互作用时约化密度算符非对角元的时间演化，得到两能级原子在热辐射场中的相干特性。当外加驱动场的时间演化满足一定条件时，可保持原子的相干性。

The two-level atom interacitng with a thermal radiation field without rotating wave approximation is investigated.The time evolution properties of non-opposite angle element of two-level atom's reducible density rectangular array is discussed.Coherence properties of two-level atom is studied in one-photon processes when the two-level atom interacts with an external driving field in the thermal radiation field.We obtain the properties of an external ...