Entropy of entanglement

The property of the entanglement for the state is also clear from the calculation of relative entropy of entanglement .

通过计算其相对熵纠缠度，我们也很好的揭示出其纠缠特性。

A variety of entanglement measure methods have been proposed , such as the relative entropy of entanglement , the geometric measure and global robustness of entanglement and so on .

如今已经有相对熵纠缠度量、几何纠缠度量、全局稳健纠缠度量等多种纠缠度量方法被提出。

The nonlocality of the state is well uncovered by introducing appropriate Bell operator based on the ' pseudospin operator ' . Moreover , we calculate directly the relative entropy of entanglement of the state .

在宇旋算符的基础上，通过引入合适的Bell算符，很好的揭示了该态的非定域性，而且，直接计算了该态的相对熵纠缠度。

Chapter 4 is devoted to proposing generation and manipulation of entangled atom states in an antiferromagnetic spin-1 BEC under magnetic field with gradient and also investigating the dynamics of the entropy of entanglement .

第四章着重讨论在有梯度的磁场作用下反铁磁相互作用的旋量玻色&爱因斯坦凝聚体中纠缠原子态的产生和操控及纠缠的动力学问题；

The von Neumann entropy measure of entanglement is used to study the fractional quantum Hall effect on the sphere .

纠缠的冯纽曼熵测量被用于研究球分数霍尔效应。

We numerically calculate the relative entropy of the entanglement and analyze in detail the linear entropy of the entanglement .

数值计算了相对熵纠缠度和计算分析了线性熵纠缠度。

The main content of this dissertation is as follows : This dissertation introduces in details the basic conditions that bipartite entanglement measure should satisfy and the five entanglement measure , von Neumann entropy , formation of entanglement , distillation of entanglement , relative entropy of entanglement and entanglement monotone .

详细阐述了两体纠缠度量须满足的基本条件，以及五种基本纠缠度量：vonNeumann熵、结构纠缠、提取纠缠、相对熵纠缠和纠缠单调，给出了一类态相对熵纠缠的解析计算公式。

Jaynes-Cummings Model is an important system to produce quantum-entangled state . We find that information entropy and the amount of entanglement oscillate with time-evolution periodically . The quantum state changes between disentangled state and entangled state .

Jaynes-Cummings模型是产生量子纠缠态的重要体系，研究发现，原子与场纠缠态的信息熵和纠缠度随时间摘要做周期性的振荡，量子态在非纠缠态与纠缠态之间变化。