论文标题
对工程量子状态家族的非经典和量子相性能的调查
An investigation on the nonclassical and quantum phase properties of a family of engineered quantum states
论文作者
论文摘要
本文的主要重点是研究工程量子状态家族的非经典和相位特性，其中大多数都显示出各种非经典特征。这些国家的美在于，这些国家可用于建立量子至上。早些时候，已经报道了有关各种类型的量子状态及其非古典特性的大量作品。在这里，研究了非高斯型操作员对流离失所剂量状态的非古典和相位性质的影响。本文包括6章。在第1章中，明确说明了执行本工作的动机，同样对量子光学的基本概念进行了讨论，并特别关注非经典性的证人和衡量标准。在第2章中，已经使用低阶和高级非古老性的各种证人研究了添加和减去流离失所的Fock状态的非经典性质。在第1章中介绍了。在第3章中，我们继续对添加的光子添加并减去的流离失所的Fock状态（及其限制案例）进行了研究。在本章中，从多个角度研究了这些状态的量子相属性，并且表明量子相属性取决于执行的量子状态工程操作。在第4章中，我们继续研究非高斯运营商对流离失所的Fock状态的非经典和相位特性的影响。在第5章中，我们进行了对量子状态工程中用于诱导非经典特征的过程之间的比较。最后，本论文在第6章中得出了结论，我们总结了本文的发现，并描述了未来作品的范围。
The main focus of this thesis is to study the nonclassical and phase properties of a family of engineered quantum states, most of which show various nonclassical features. The beauty of these states is that these states can be used to establish quantum supremacy. Earlier, a considerable amount of works has been reported on various types of quantum states and their nonclassical properties. Here, complementing the earlier works, the effect of non-Gaussianity inducing operators on the nonclassical and phase properties of displaced Fock states have been studied. This thesis includes 6 chapters. In Chapter 1, motivation behind performing the present work is stated explicitly, also the basic concepts of quantum optics are discussed with a specific attention on the witnesses and measures of nonclassicality. In Chapter 2, nonclassical properties of photon added and subtracted displaced Fock states have been studied using various witnesses of lower- and higher-order nonclassicality which are introduced in Chapter 1. In Chapter 3, we have continued our investigation on photon added and subtracted displaced Fock states (and their limiting cases). In this chapter, quantum phase properties of these states are investigated from a number of perspectives, and it is shown that the quantum phase properties are dependent on the quantum state engineering operations performed. In Chapter 4, we have continued our investigation on the impact of non-Gaussianity inducing operators on the nonclassical and phase properties of the displaced Fock states. In Chapter 5, we have performed a comparison between to process that are used in quantum state engineering to induce nonclassical features. Finally, this thesis is concluded in Chapter 6, where we have summarized the findings of this thesis and have also described scope of the future works.
