混合迭加态的振幅平方压缩  

Amplitude--Squared Squeezing in Mixed Supperposition States

作　　者：季德璜[1] 

机构地区：[1]苏州大学物理系 215006

出　　处：《量子电子学》1993年第3期249-254,共6页

摘　　要：本文详细讨论了由Fock态组成的混合迭加态的振幅平方压缩条件,发现只有六类混合迭加态可以产生振幅平方压缩,并应用Bloch矢量方法在平面上描绘了这六类混合迭加态的压缩区域。指出不同于通常的二阶压缩和高阶压缩,由非真空Foch态组成的混合迭加态可以产生振幅平方压缩。In this paper, we investigate the condition of amplitude-squared squeezingin mixed supperposition states and show that only six classes of supperpositionstates can exhibit the amplitude -squared sqeezing.Using the method of Bloch vec-tor, we describe the squeezing zones of these six classes of supperposition states,which are different from the normal second-order squeezing and the higher-ordersqueezing. The amplitude-squared squeezing can occur in supperposition statescomposed of nonvacuum Fock states.

关 键 词：振幅平方压缩 混合迭加态 压缩区 

分 类 号：O431[机械工程—光学工程]