查询词典 quantum leap

In the past 3 years, we have made the following progress:（1）we devised some theoretical schemes performing quantum information processes in encoded subspaces under the condition of general interaction models;（2）considering some practical physical systems,we provided some more efficient schemes performing quantum information processes under actual physical conditions;（3）we studied the stability of the entanglement in 2-qubit system under several decoherent environments;（4）we studied the optimal successful probability of some kinds of nondistortion quantum interrogations in quantum subspaces;（5）we also investigated some fundamental questions in quantum information fields such as quantum channel,quantum teleportation etc.

近三年来，我们在以下方面取得进展：（1）研究了在一般的相互作用下，直接在子空间中实施各种量子信息过程的理论方案；（2）针对于当前的某些实际的物理系统，研究了在现有的实验条件之下，如何高效地实施各种量子信息过程的方法；（3）研究了2-qubit量子系统的纠缠在各种消相干环境下的稳定性问题；（4）研究了量子子空间实施无损伤的量子质询的最佳效率；（5）我们也研究了量子信道、量子隐形传态等量子信息的基础问题。

The Invitational Exhibition of Modern Chinese Art with "leap month" as its theme is based on consideration described above, and it is expected to show the following three intentions with "leap month" in the calendar of China as its metaphor: First, when everybody feels time is hasty and is not enough, leap month is a kind of present; Second, in the confusion of the time rhythm brought by the great change of world, perhaps leap month is a kind of remedy and balance of time, it is physical, and it is physiological and mental; Third, leap month, way of balance, includes a kind of suspensive remedy and intervention.

以"闰月"为题的本次中国当代艺术邀请展，便是基于上述考量，借中国历法中的"闰月"为隐喻，期冀展示如下三点用意：其一，在人人都感到时间的匆忙不够时，闰月是一种馈赠；其二，在世界巨变带来的时间节奏的混乱中，闰月或许是一种矫正和平衡，是物理的，亦是生理和心理的；其三，闰月的这种平衡方式，包含着一种暂停、暂歇的纠正和干预。

It has been showed that the quantum PCII can be still valid for the general case Jacobi J 1, which is different from quantum Noether theorem. The equivalence between quantum canonical equation and PCII is deflved at the quantum level. The comparisons of these results in quantum level with those in classical theories are discussed in detail. The relationship of canonical transformation with quantum PCII is obtained.

结果表明，当变换的Jacobi行列式不为1时，量子PC积分不变量仍然存在，从而把PC积分不变量推广到了最一般情形；在量子水平上，证明了量子正则方程与该积分不变量之间的等价性；比较了经典与量子PC积分不变量以及PC积分不变量与Noether定理；给出正则变换与量子PC积分不变量间的关系。

The epitaxial wafer is equipped with two detached quantum traps, by preparing three electrodes on the p-type layer I, the n-type layer and the p-type layer II, the two quantum traps can respectively emit light with different wavelength under applied voltage, after the epitaxial wafer is prepared to LED chip, mixing light with different wavelength emitted by the quantum trap I and the quantum trap II are obtained, or a single-color light emitted by the quantum trap I or the quantum trap II is obtained, thereby greatly extending application area of the LED.

本发明外延片设有两个分隔的量子阱，通过在p型层I、n型层、和p型层II制作三个电极，可使两量子阱在外加电压下分别发射不同波长的光，该外延片制作成LED芯片后，可获得由量子阱I和量子阱II发出的不同波长的混合光，或者分别发出由量子阱I或量子阱II产生的一种颜色的单色光，大大拓展LED的应用范围。

We present a quantum error correction scheme based on quantum cloning. This scheme shows the relationship between quantum cloning and quantum error correction. 4 To avoid decoherence in quantum algorithms, we construct a decoherence-free subspace by using multiple quantum coherences.

该方案一方面说明了量子克隆与量子纠错存在一定程度上的联系，另一方面也反映出一些量子克隆过程本身具有一定的抗消相干的能力。4）提出用二维NMR中的多量子相干实现无消相干子空间，并在实验上验证了该DFS的避错能力。

Including quantum information and quantum computing,quantum control,multi-body system in quantum mechanics and quantum Hall effect.

其中包括量子信息和量子计算，量子控制，以及与多体系统量子力学和量子霍尔效应。

For example, advanced topics in quantum communication such as quantum teleportation, superdense coding, quantum state transmission (quantum error-correction), and quantum encryption especially benefit from this unified approach.

例如， 高级题目在量通讯象量子心灵运输，编码的superdense那样，量说明输送，并且量加密特别受益于这种统一的方法。

He lay down low to the race, whining eagerly, his splendid body flashing forward, leap by leap, in the wan white moonlight. And leap by leap, like some pale frost wraith, the snowshoe rabbit flashed on ahead.

在苍白的月光下，他急切地呜叫着，健美的身躯贴近地面，跳跃飞奔着，那只雪兔一跳一跳地像个白色的雪精灵一样在他前面一闪而过。

Also this paper gives a definition of quantum conditional entropy of entanglement E_ A｜Band proves that it satisfies the four fundamental conditions of a entanglement measure for a kind of mixed state of 2×2 quantum system by this negative quantum conditional entropy Using conditional entropy of entanglement,this paper investigates the quantum entanglement between the two identical two-level atoms simultaneously interacting with vacuum cavity field as an application.

给出了负值量子条件作为条件熵纠缠度的定义，证明了条件熵纠缠满足作为2×2系统一类混合纠缠态量度的四个基本条件。当双量子系统处于纯态时，条件熵纠缠度即为部分熵纠缠度。

For example, we cannot copy an unknown state exactly because of "the no-cloning theorem"(no-deleting theorem), which is known as one of the most significant differences between classical and quantum information. Therefore to get to know what we can and cannot do in QIS or in quantum physics becomes an important and interesting problem. Particularly, in quantum communication and quantum cryptography, many novel schemes are based on the fact that nonorthogonal states cannot be discriminated determinately.

例如，经典信息中，编码状态是可以精确复制、区分的；而在量子信息中，由于叠加性的存在，使得非正交态不可区分，量子态不可复制、删除等；故而以往既成的观念都被打破，探讨在量子信息的框架下编码信息的估计、物理可实现的操作，以及这些量子体系在外界通过物理方法进行识别过程中的差异，是量子信息学、乃至物理学中的重要也很基本的问题。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。