联合增光子二模圆态的非经典性质  

Nonclassical properties of nonlocal coherent photon-added two-mode circular state

作　　者：王中结[1] 台启佳 WANG Zhong-Jie , TAI Qi-Jia(College of Physics and Electronic Information, Anhui Normal University, Wuhu 241000, Chin)

机构地区：[1]安徽师范大学物理与电子信息学院

出　　处：《四川大学学报（自然科学版）》2018年第2期353-356,共4页Journal of Sichuan University(Natural Science Edition)

基　　金：安徽省自然科学基金(090412060)

摘　　要：理论上研究了联合增光子二模圆态的互相关函数,亚泊松分布等非经典特性.数值计算表明激发数和叠加态数对这些特性有明显的影响.当叠加态数N=2时,交叉关联函数随单模平均光子数的增大而单调减小,并且联合增光子二模圆态存在关联效应.随着叠加态数的增加,二模光场间的关联效应将减弱.当叠加数N=2时,只有当激发数s≤2时,且单模平均光子数大于某阈值时,联合增光子二模圆态才存在亚泊松分布效应.We investigate theoretically the nonclassical properties, such as cross correlation function and sub-Poissonian distribution effect, for the nonloeal coherent photon-added two-mode circular state. The results show the superposition number and excitation number have significant effect on these properties. When the superposition number N = 2, the value of cross correlation function decreases monotonously with the increasing of the average photon number of single-mode and the nonlocal coherent photon-added two-mode circular state has the cross correlation effect. Increasing the superposition number , the cross correlation effect will be reduced. When the superposition number N = 2, sub-Poissonian distribution effect of the nonlocal coherent two-mode photon-added circular state can be observed only when single- mode average photon number is greater than a certain threshold value.

关 键 词：量子光学 联合增光子双模圆态 互关联函数 亚泊松分布 

分 类 号：O431[机械工程—光学工程]