双模场真空态与相干态的叠加态及其部分非经典性质  

Non-classical Properties of Superposed State of Two-mode Vacuum State and Two-mode Coherent State

作　　者：徐广文[1] 汪柏年[2] 

机构地区：[1]辽宁大学物理学院,辽宁沈阳110036 [2]沈阳大学理学院,辽宁沈阳110044

出　　处：《沈阳大学学报》2007年第6期43-45,51,共4页

摘　　要：构造了辐射场的一类新的非经典态,即双模真空态与相干态的叠加态.并讨论了它的非经典性质,即压缩效应、亚泊松分布、两模间二阶相关函数.数值计算结果表明,双模真空态与相干态的叠加态具有非常显著的非经典性质,因此双模真空态与相干态的叠加态是一类新的非经典光场态.A new class of non-class of non-classical state of the radiation field is constructed, which is called superposed state of two-mode vacuum state and two-mode coherent state. The non-classical properties are discussed, which are squeezed effect, sub-Poissonian distribution and the second-order cross correlation function between the two modes. The numerical results show that the superposed state of two-mode vacuum state and two-mode coherent state possesses very obvious non-classical properties. Therefore it is a new non-classical quantum state.

关 键 词：双模相干态 双模真空态 压缩效应 亚泊松分布 模间二阶相干度 

分 类 号：O431.2[机械工程—光学工程]