纠缠度

对于NOON态，发现非定域性刚好是纠缠度的显函数，非定域性随着纠缠度单调变化。

For NOON state , we have found that nonlocality is an explicit function of concurrence , and the nonlocality varies with concurrence monotonously .

在腔场中两原子共生纠缠度的变化及最大纠缠态的制备

Evolution of Two Atoms ' Concurrence and Preparation of an Entangled State Through Cavity

在一定的外界条件下，得到非零的纠缠度以及保真度大于2/3.最后发现，当磁场B较弱、温度T很低的时候，以海森堡热纠缠混合态作为量子信道的隐形传递要优越于经典信道。

It is found that the entanglement teleportation of the mixed channel is superior to the classical communication when the magnetic field B is feebleness and the temperature T is very low .

纠缠度用concurrence来定量计算。

Here , the entanglement is calculated by making use of the concurrence .

结果表明，虽然Bell基都是纠缠度最大的纠缠态，但从局域SU2变换不变量看其仍是两种形式。

The analysis results show that all Bell states are maximally entangled states , but they are two different local SU_2 transformation invariant .

偶极相互作用存在的前提下Kerr介质对系统纠缠度的影响

The influence of Kerr medium on the intrinsic decoherence under the condition of existence of dipole-dipole interaction

用concurrence下限来计算纠缠度.第四系下限的探讨

A lower bound of concurrence is proposed to calculate the entanglement . A DISCUSSION ON THE LOWER LIMIT OF THE QUATERNARY

Tavis-Cummings模型中耦合双原子纠缠度的演化特性

Evolution Properties of Entanglement of Two Coupling Atoms in Tavis-Cummings Model

我们研究了NOON态和α00α态的纠缠度与量子非定域性的关系。

We study the relationship be-tween concurrence , which is a measure of entanglement , and nonlocality for NOON state and α OO α state , respectively .

T-C模型中有耦合的两二能级原子的纠缠度

Entanglement of Two Coupled Two-Level Atoms in Tavis-Cummings Model

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。

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 .

借助于共生纠缠度，分析了含原子运动Jaynes-Cummings模型中原子与单模腔场的热纠缠现象。

We investigate the time evolution of thermal entanglement between atom and single photon in Jaynes-Cummings model containing atomic motion by means of concurrence .

纠缠度对双光子Jaynes-Cumming模型的光学效应的影响

Influence of entanglement degree on squeezing and photon antibunching in the two-photon Jaynes-Cummings model

非简并双光子Jaynes-Commings模型中纠缠度对光场的影响

Influence of Entanglement Degree on the Light Field in the Nondegenerate Two-Photon Jaynes-Commings Model

双模压缩真空态模间纠缠度的讨论

A Discussion on the Inter-mode Entanglement Degree of Two-mode Squeezed Vacuum States

结果发现，其纠缠度是一个随时间呈正弦变化的周期函数。

The results found that the entanglement is a sine function over time .

我们主要讨论形成纠缠度。

We mainly discuss the entanglement of formation .

给出了直积态纠缠度为零的一个简单证明。

A simple Proof is given that the entanglement of kronecker Product state is zero .

两种参数下双模压缩真空态纠缠度的差异

Differences Entanglement Degree of The two Model Squeezing Vacuum State in Two Kinds of Different Parameters

提出了两入射光量子态的局域纠缠度和非局域纠缠度的概念；

We bring forward the concept of ' local entanglement ' and ' nonlocal entanglement ' .

同时，两原子之间的纠缠度以及光子干涉条纹的可见度也将表示出一些新的性质。

Meanwhile , the two-atom concurrence and visibility of interference fringes of photons also exhibit some new features .

随着时间的演化，原子与光场组成体系的纠缠度呈现出周期性变化规律。

Through changing the interaction time , the degree of entanglement of the atom-cavity field hasa periodic change .

另外，还考虑了原子自发辐射和腔场衰变对纠缠度的影响。

In addition , it also consider the influence of atomic spontaneous emission and cavity decay on atomic concurrence .

结果表明：失谐量并不影响系统热纠缠度的演化；

It is shown that detuning frequency has no effect on the evolution of thermal entanglement in the system .

在这段时间内，系统一直处于高纠缠度的状态，因而可以实现纠缠的存储，有利于量子计算和量子通信。

During this period , high entanglement in the system can be kept . The entangled states can be stored .

数值计算了相对熵纠缠度和计算分析了线性熵纠缠度。

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

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

讨论了量子对策与量子纯态纠缠度的关系。

In this paper , the authors discuss the relation between quantum game and the entanglement of quantum pure state .

最后得出了重要结论，光场压缩与两原子纠缠度有很强的关联。

And we draw a conclusion that the squeezing of two optical fields is very dependent on the degree of entanglement .

借助于共生纠缠度和输入输出保真度考察了初始处于纠缠态的两粒子在联合噪声环境中的消纠缠特性。

Entanglement decoherence of two particles interacting with the same environment is investigated by means of concurrence and the input-output fidelity .