New approach for obtaining the time-evolution law of a chaotic light field in a damping gaining-process  

作　　者：龚黎华 周南润 胡利云 范洪义 

机构地区：[1]Department of Electronic Information Engineering,Nanchang University [2]Department of Physics,Jiangxi Normal University [3]Department of Physics,Shanghai Jiao Tong University

出　　处：《Chinese Physics B》2012年第8期31-33,共3页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 61141007,11047133,and 11175113);the Natural Science Foundation of Jiangxi Province of China (Grant Nos. 2010GQS0080 and 2010GQW0027);the Research Foundation of the Education Department of Jiangxi Province of China (Grant No. GJJ11339);the Sponsored Program for Cultivating Youths of Outstanding Ability in Jiangxi Normal University

摘　　要：A new approach for studying the time-evolution law of a chaotic light field in a damping-gaining coexisting process is presented. The new differential equation for determining the parameter of the density operator p（t） is derived and the solution of f for the damping and gaining processes are studied separately. Our approach is direct and the result is concise since it is not necessary for us to know the Kraus operators in advance.A new approach for studying the time-evolution law of a chaotic light field in a damping-gaining coexisting process is presented. The new differential equation for determining the parameter of the density operator p（t） is derived and the solution of f for the damping and gaining processes are studied separately. Our approach is direct and the result is concise since it is not necessary for us to know the Kraus operators in advance.

关 键 词：chaotic light field damping gaining process time evolution law quantum communication 

分 类 号：O415.5[理学—理论物理] O431.2[理学—物理]