非高斯量子态可以有效弥补传统高斯型量子态在量子信息处理中的一些不足，为量子信息处理提供新的物理载体，并且推动光场量子态调控工程的发展。本项目旨在利用传统高斯型光场经过光束分离器或参量放大器等装置发生干涉后，通过条件测量操作的方法，制备出具有高阶非经典属性的新型非高斯量子态。结合条件量子态中各物理量进行一些具体的数值分析，探究出条件测量操作在改善量子态的纠缠等非经典性方面的可行性条件，从而提高量子精密测量精度和量子隐形传态保真度，为量子光学实验设计以及它们在量子信息处理中的应用提供有力的理论支撑。

Non-Gaussian quantum states can effectively remedy the defects of traditional Gaussian quantum states in quantum information processing, which provides new physical carrier for quantum information processing, and promotes the development of quantum state engineering. This project aims to prepared new type non-Gaussian quantum state with high order non-classical properties via the conditional measurement operation after some traditional Gaussian optical fields are put into beam splitter and parametric amplifier devices. Combining with various physical quantities in the conditional quantum states, we use some specific numerical analysis to explore the feasibility of conditional measurement operation and improve the nonclassicality of quantum states such as entanglement, which further can improve the precision in quantum metrology and the fidelity in quantum teleportation. The implementation of the project will provide theoretical basis to perfectly finish some experimental designs in quantum optics and their applications in quantum information processing.