查询词典 quantum electronics

The aim of this paper is to answer the query on the foundation of quantum mechanics advanced by Tao Zongying in articles,Acta Mathematica Scientia,1982,2(2):183～192 and Acta Photonica Sinica,1997,26(9):769～770.It is shown,based on the globalism concept in quantum mechanics,that Landau and Lifshitz′s momentum probability distribution function of a particle in a one dimensional infinitely deep square potential well is correct,and that Pauli and other′s distribution function is incorrect.The problem of mome...

本文回答了文献1～2对量子力学提出的疑问基于量子力学的整体性概念指出，Landau和Lifshitz给出的一维无限深方势阱中粒子的动能概率分布函数是正确的，Pauli等人给出的概率分布函数是不正确的从量子测量理论的角度讨论了一维谐振子的动量概率分布问题，并且指出势能大于本征能量的概率不为零并不表示存在负动能的概率分布区域

In the fourth one, the joint state of Bell states is used as the quantum channel toteleport a multipartite quantum state.

第四种方案以Bell基所组成的联合量子态作为量子信道，实现了多体量子态的受控隐形传态。

However this principle exhibits itself only in a multipartite quantum system, thus it is difficult to understand it in simple single particle quantum systems.

利用这一联系反过来可以帮助我们理解广义量子干涉原理，因为在量子计算机中一切计算都是普通的量子力学所允许的量子操作，因此广义量子干涉原理就是普通的量子力学体系所允许的原理，而这个原理只是在多体量子力学体系中才会表现出来。

Furthermore, the simulations of high speed modulation in nonidentical quantum wells and quantum dot laser diodes are also available in this thesis.

另外本论文也替相异双重量子井与量子点雷射二极体的高速直接调变进行纯理论模拟，探讨双重量子井与量子点中的直接调变。

Quantum NOT gate is used to realize quantum mutation to avoid premature convergence.

引言 量子计算是信息科学和量子力学相结合的新兴交叉学科。

Generally, quantum parallelism is thought to be the main character of quantum computers.

在一般文献中，量子并行被认为是量子计算的主要特征。

Models of pentahedron, hemisphere, spherical cap quantum dots as well as the combinations of the quantum dots of plane, pentahedron and spherical cap are set up.

建立金红石TiO_2(001)面五面体形状量子点、半球形状量子点、球缺形状量子点以及平面、五面体和球缺组合形状量子点的点阵模型。

Contents: A Brief Review of Elementary Quantum Chemistry; An Introduction to Electronic Structure Theory; The Born-Oppenheimer Approximation; Time Evolution of Wavefunctions; Angular Momentum Summary; The Unitary Group Form of the Hamiltonian; Introduction to Hartree-Fock Theory; Permutational Symmetries of Integrals; Notes on Excited Electronic States; The Quantum Harmonic Oscillator; Assigning Symmetries of Vibrational Modes; Notes on Elementary Linear Algebra

内容： 初等量子化学的简评；电子结构理论的介绍；天生奥本海默的接近； Wavefunctions的时间演化；角动量摘要； Hamiltonian的单位的组形式；哈特里-Fock 理论的介绍；积分的Permutational对称性；在令人激动的电子国家上注明；这台量谐波振荡器；分配振动的方式的对称性；在初等线性代数上注明

The most parts of thesis as follows:1. Five symmetrical intra-molecular charge transfer oligomeric phenylene vinylene light emitting materials were designed and synthesized using oligomeric phenylene vinylene as a framework.2. The structures of target molecule were characterized by ~1HNMR,~(13)CNMR, IR, MS and element analysis.3. In order to study the influence of the location and numbers of electron-donor and electron-acceptor on their photoelectric performance by changing length of OPV chain, the UV spectra and fluorescence spectra of target compounds has been compared. We have researched into main factors effecting on material emitting red-shift; organic electroluminescence device was prepared using the compound P4. The capability of eletroluminescence was researched.4. The photoelectric properties of P4 was explained by quantum chemical calculation (the Gaussian 98 quantum chemistry program). It is greatly contributed know the whole process of charge transfer to guide the design of red emitters.

本文研究的内容主要包括以下部分：(1)设计并合成5个对称的以齐聚苯乙烯类为骨架的分子内电荷转移型齐聚苯乙烯类发光材料；(2)通过IR，MS，~1H-NMR，~(13)C-NMR和元素分析对所合成的目标化合物进行表征；(3)通过对目标化合物的紫外光谱和荧光光谱比较分析，研究改变OPV的长度，电子给体和电子受体的位置及数量对其光电性能的影响，探讨材料发射红移的主要因素；选取性能良好的目标化合物P4制备成OELD器件，对其电致发光性能进行研究；(4)运用Gaussian98量子化学程序包，采用量子化学方法对目标化合物P4的光电性能从理论加以解释，进一步认识荷移跃迁的整个过程，为红光材料的设计加以指导。

Recently, photoemission spectroscopy has been widely used for the study of quantum well states in films, several models have been developed to explain the relationship of the discrete quantum well states and photoemission spectroscopy.

近年来，光电子谱被广泛应用于薄膜中量子阱态的研究。为解释薄膜中分立的量子阱态和薄膜的光电子谱间的关系，发展了一些理论模型。

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。