纠缠

It is shown that only for weak coupling between the system and environment does an exponential decay of entanglement appear, for certain classes of two-qubit entangled states.

研究表明：当qubit和环境耦合较弱时，在特定的初始纠缠态下，退纠缠是以e指数形式完成的。

But masked by such frankness and feistiness was a sensitive leader who took criticism personally, engaged in a vicious, prolonged battle with the nation's conservative media, and appeared to consider real-life politics, which haunted him even in retirement, too messy for his character and too much to take.

当政期间，卢武铉从一次弹劾中险胜，并且公开承认"已经厌倦了当总统"，但是尽管表现的这么坦诚，活跃，他却是一个敏感的领导人，独自承受批评，纠缠于与保守媒体的长期而残酷的斗争，他考虑真实生活的政治，这些在他退休后仍然纠缠他，他的这些性格让他遭到很大麻烦。

The effects of the atomic initial state, mean photon numbers of field, the degree of the entanglement for the entangled coherent field, and the coupling strength between the Kerr medium and field on the atom's population are discussed via numerical calculations.

讨论了双原子体系的初态、初始光场的平均光子数、双模纠缠相干光场的纠缠程度及Kerr介质与双模光场的耦合强度对原子布居时间演化特性的影响。

This thesis mainly studies the operator entanglement in heisenberg chains and the entanglement properties of dirac electronic state.

这篇毕业论文主要研究了海森堡链中的算符纠缠与狄拉克电子态的纠缠性质。

Entangled state ; muliti-qubit ; canonical form ; LU polynomial invariant ; SLOCC classification ; measure of entanglement

纠缠态；多量子比特；正则形式； LU多项式不变量；随机LOCC分类；纠缠度

Then we give general form of the concurrenceand we discuss the effect of the magnetic field on the entanglement.

然后研究了有磁场作用的哈密顿量的对热纠缠，给出了一般形式。讨论了磁场对纠缠度的影响。

Also, the entanglement properties of bipartite entangled SVSs as well as multipartite entangled SVSs are discussed

对纠缠压缩真空态的纠缠性质也进行了简略的讨论。

A simple entanglement measure for multipartite pure states is formulated based on the von Neumann entropy of a series of reduced density matrices.

本文推广了两态两体纯态系统的纠缠度量方法，即利用约化密度矩阵的von Neu-mann熵来度量纯态纠缠。

We find that when the two input modes are classical states, there is no entanglement produced at all; but even both of the two modes are nonclassical, there is no entanglement under certain condition.

我们发现，当输入的两个模都是经典态时，不会有纠缠产生；但即使两个输入模都是非经典态，在一定条件下，也不能产生纠缠。

These obtained results test and verifys that conditions of an entanglement measure may be taken as the entanglement measure of the prue state and a kind of mixed state of bipartite quantum system.

结果表明，两纠缠度演化规律完全一致，验证了负值量子条件熵可以作为双量子系统纯态和一类混合态的纠缠量度。

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。