单模激光Lorenz混沌行为的“准不变量V”分析  

Quasi Invariant V for Chaotic Behavior of Lorenz Map of Single Mode Laser

作　　者：刘凤娟[1] 郭奇志[1] 谭维翰[1] 

机构地区：[1]上海大学理学院,上海200444

出　　处：《上海大学学报（自然科学版）》2006年第1期61-65,共5页Journal of Shanghai University:Natural Science Edition

摘　　要：在单模激光的Lorenz混沌行为在第二阈值处存在“准不变量V”的基础上,用理论分析与数值实验的方法,得出即使不在第二阈值处,同样存在“准不变量V”,且可用来判断系统何时进入混沌状态.Theoretical analysis and numerical experimentation are carried out based on the existence of quasi invariant V at the second threshold for single mode laser＇s chaotic behavior of a Lorenz＇ s system. It is concluded that the quasi invariant V does exist, and is not restricted to the second threshold. This can be used to judge when the system enters a chaotic state.

关 键 词：LORENZ方程 混沌 准不变量V 

分 类 号：TN24[电子电信—物理电子学]