一类特殊多模泛函叠加光场不等幂次振幅压缩

Unequal-power amplitude squeezing of a special type of multimode functional superposition state light field

构造了一类特殊的多模泛函叠加态光场｜ψ(4) (fj)〉q,它是由多模泛函相干态、多模复共轭泛函相干态以及它们的相反态这四个量子态等几率线性叠加组成的.通过研究发现,在相同条件下,态｜ψ(4) (fj)〉q中的各不同模呈现的不等幂次振幅压缩现象的压缩程度、压缩深度,取决于光场经典强度的空间分布函数.特别是随着各模经典初始相位和经典强度的空间分布函数的变化,态｜ψ(4) (fj)〉q中各不同模所呈现的不等幂次振幅压缩现象在空间上的分布是非均匀、非线性和各向异性的.

A special type of multimode functional superposition state light field is structured which is composed of multimode functional coherent state, multimode complex conjugation functional coherent state and their contrary states by equal intensity. The properties of unequal-power amplitude squeezing of the state ｜ψ^((4))_(f_j)〉_q is studied, and it is found that the squeezing degree and depth of each mode of the state are decided by the spatial distribution function of classical intensity of each mode of the state ｜ψ^((4))_(f_j)〉_q. Especially, the unequal-power amplitude squeezing properties are asymmetrical, nonlinear and anisotropic with the change of the spatial distribution function of classical initial phase and classical intensity of each mode of the state (｜ψ^((4))_(f_j)〉_q).