纠缠

Based on the large detuned interaction between aΛ-type three-level atomand a coherent optical field, we propose the scheme for the generation of multi-atomentangled states and multi-cavity entangled states.

二、提出基于Λ型三能级原子与相干光场之间的大失谐相互作用的多原子纠缠态和多腔场纠缠相干态的制备物理方案。

Sudden death of entanglement between two entangled atoms independently coupled to fields is investigated in two detuning cavities.

在两个腔都失谐的情况下，两个原子分别与两个光场耦合的模型中，研究了初始纠缠的两个原子出现了纠缠突然死亡现象的问题。

We show that, although the Fenna Matthews Olson protein in natural conditions largely contains bipartite entanglement between dimerized chromophores, a small amount of long-range and multipartite entanglement should exist even at physiological temperatures.

之前的科学结论认为，量子纠缠是一种非常脆弱的状态，很难得到和维持，而研究人员现在证明，量子纠缠能够在一个生物系统中存在并且持续一段时间。

It is shown that the direct coupling between the dots can reduce the degree of the entanglement for the excitons.

利用共生纠缠度研究了单模腔场内两个耦合量子点中激子的纠缠动力学行为。

Furthermore, shot noise spectrum of superradiant entangled excitons in double dots is also investigated

我们也计算出双量子点中纠缠态激子的shot-noise spectrum，理论的结果显示量子纠缠态可藉

They found that the entanglement between the first and the second fermions can be enhanced or suppressed by altering the position of the third fermion.

第三个费米子的位置影响第一和第二个费米子之间的纠缠。当改变第三个费米子的位置时，系统的纠缠能被增强或者抑制。

In this paper the authors investigated the bipartite entanglement of a system of three fermions in the noninteracting Fermi gas by calculating the negativity and the von Neumann entropy.

论文摘要：本文研究了三个费米子系统中没有相互作用的费米气体的两体纠缠。物理量negativity和von Neumann熵用来测量系统的纠缠。

The results show that the atomic population is time-independent provided that the atoms are in |β11〉 state. For the other three Bell states, there will appear the periodical collapse revival of atomic populationif the initial mean photon number reaches some special values. With the increase of the initial mean photon number, the oscillation frequency of the time-evolution of atomic population increases correspondingly, and the amplitude decreases. The degree of the entanglement of the two-mode entangled coherent field has no

结果表明，当双原子体系的初态为|β11〉时，原子布居均不随时间变化；当双原子体系的初态为|β00〉，|β01〉或|β10〉且初始平均光子数达到一定值时，演化特性呈现周期性的崩塌-回复效应，并随初始光子数的增加，其演化曲线的振荡频率增大，振幅减小；双模纠缠相干光场的纠缠程度不影响Rabi振荡频率，但对振幅影响显著； Kerr介质与光场耦合系数达到一定值时，对Rabi振荡频率和幅度及原子布居的崩塌-回复周期产生强烈影响。

Quantum properties of light in the two-photon T-C model in Kerr medium.

Tavis-Cummings模型中三体纠缠态纠缠量的演化特性。

In this thesis, using three partly entangled pairs as the quantum channel, we present a scheme for probabilistically teleporting an unknown three-particle entangled state by means of the optimal discrimination between two nonorthogonal quantum states.

在本论文中，使用三个非最大的纯纠缠对作为量子通道，通过对两个非正交量子态的最佳识别，我们提出了一个概率量子隐形传送三粒子纠缠态的理论方案。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。