摘要
精确求解了单模光场与N型四能级原子相互作用系统的波函数 ,并采用数值计算方法 ,分析了原子布居的时间演化特性。N型四能级原子相当于具有双层精细结构的二能级原子 ,在一定的条件下四能级系统可退化为V型或Λ型三能级系统或简单二能级系统。计算结果表明 ,四能级系统原子粒子数布居的时间演化不具有周期性。
The wave-function of the system of single-mode field interacting with N-type four-level atom is solved exactly, and the time-evolution of atomic particle's occupancy is analyzed by means of numerical method. The N-type four-level atom is about equal to the two-level atom whose every level has double-skin fine structure, it could degenerate into V-type or Λ-type three-level atom even into simple two-level atom under some conditions. The results of the studies indicate that the time-evolution of atomic particle's occupancy of the four-level system is nonperiodic.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
2002年第2期221-224,230,共5页
Journal of Atomic and Molecular Physics
基金
湖南省教育厅科研计划项目 (批准号 :0 110 40 0 10 12 8)资助的课题
