期刊论文

中文

光学学报

0253-2239

2002

22

8

907-911

10.3321/j.issn:0253-2239.2002.08.003

国家自然科学基金 (6 0 0 780 16 ) 湖北省自然科学基金资助课题

本校为第一机构

研究了一位于相位损耗腔中大失谐下二能级原子与相干态场相互作用系统中，光场线性熵、原子线性熵以及光场-原子系统线性熵的演化，讨论了原子初始状态和光场的平均光子数对各线性熵的影响。结果表明，光场线性熵和原子线性熵的演化都较强地依赖于原子初始状态，而系统线性熵的演化与原子初始状态无关。由于光场平均光子数的增加，光场、原子和系统的线性熵都会增加。

The evolution of the linear entropies of field, atom and field atom coupling system in the system of a two level atom inside a phase damping cavity interacting with a coherent field under large detuning are investigated. The effects of atomic initial state and the mean photon number of the field on the above linear entropies are discussed. The results show that the linear entropies of both the field and the atom are strongly dependent on atomic initial state, but the evolution of the linear entropy of the field atom coupling system is independent of the atomic initial preparation. With the inc...