激发纠缠相干态的统计性质

将玻色湮灭算符的逆算符作用在纠缠相干态的一个模上得到激发纠缠相干态.该量子态是玻色湮灭算符的偶次幂本征态；由于两个场模间的纠缠,在a模上增加光子不但可以使a模的平均光子数增加,也可以使b模的平均光子数发生变化；当a模上增加光子后,两个场模的亚泊松分布特性和Cauchy-Schwartz不等式的破坏都得到了增强,但模间反关联度反而减弱.

Statistical Propertities of Excited Entangled Coherent States

A new kind of entangled coherent states-excited entangled coherent states was obtained by acting boson inverse operators on some mode of entangled coherent states.The result shows that the new states are eigenstates of the 2k-th power of the annihilation operator.Because of the entanglement between the modes of the field,the mean number of mode a increased,and the mean number of mode b changed by photon-adding.After adding photons,sub-poissonian photon statistics and violation of the Cauchy-Schwatz inequality of the fields can be enhanced obviously,but the degree of intermode anticorrelation was weakened by the photon excitations.