摘要
在弱相干场作用下,研究了二能级原子和光场相互作用系统中原子和光场线性熵的演化规律,讨论了原子初态对原子和光场线性熵的影响。结果表明,原子和光场的线性熵既与原子初始时刻的无序度有关,也与原子处于基态的概率大小有关。当原子处于基态时,原子和光场的线性熵完全相同;当原子处于混合态时,原子和光场的线性熵存在负关联。
Under a weakly coherent field,the linear entropies of atom and field in a two-level atom-field coupling system are investigated.The effects of the atomic initial state on two linear entropies are discussed.The results show that atom and field entropies are influenced by the initial purity of atom and the ground state probability.The atom and field entropies are identical while the atom initially in the ground state,the atom and field show a strong negative correlation while atom is initially in mixed state.
出处
《长江大学学报（自科版）（上旬）》
CAS
2007年第1期35-36,共2页
JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG
基金
长江大学科研发展基金项目(260A1100)。
关键词
线性熵
二能级原子
混态
linear entropy
two-level atom
mixed state
