查询词典 the quantum theory

The quantum cryptography communication is the combination of classical cryptography theory and quantum mechanics.

量子密码通信是经典密码学与量子力学相结合的新兴交叉学科。

Through the Radon transformation of the normally ordered Wigner operator we introduce two mutually conjugate intermediate coordinate- momentum representations. Based on them we construct the appropriate quantum phase space theory which includes the new Wigner operator adapting to this space and construct the appropriate generalized Fredholm operator equation and then find its solution. We then deriving the Hermite polynomials operator identities by applying the Fredholm equation. We also reveal the connection between the generalized Wigner operator and the 2-dimension normal distribution in statistics, which is useful to study the quantum tomogram. As the application of the entanglement Husimi operator theory we calculate the Wigner function and the Husimi function of the one- and two-mode combination squeezed state , study their characters through drawing the three-dimensional graphics.

由正规序Wigner算符的拉登变换引入了两个互为共轭的中介坐标-动量表象，在此基础上我们建立了相应的量子相空间理论，其中包括引入适合该空间的新的Wigner算符；并在该表象的基础上，建立了广义Fredholm算符方程，求出了它的解，并运用该方程导出有关厄米多项式的算符公式；揭示广义Wigner算符与统计学中的随机变量的二维正态分布形式上的相似，这对于研究量子态的tomogram(是英文Tomography的派生词)有用。

This has just reached ouraim of establishing a quantum theory of potential scattering inphase space in the sense of the pure quantum mechanics.

这恰好就达到了我们在纯量子力学意义上建立相空间势散射理论的目的。

The quantum noiseless coding method is discussed with the quantum entropy theory, and the capacity of quantum channel.

运用量子熵理论，引入量子无噪声编码方法，并研究了量子信道中的信息容量问题。

The fidelities of quantum states of system in Jaynes-Cammings model considering the dissipation of cavity were studied by using the complete quantum theory.The influences of the cavity damping constant and the numerical value of initial mean photon number on the fidelities of quantum states was discussed.

利用全量子理论研究了存在腔耗散的大失谐 Jaynes-Cumming 模型中量子态保真度，讨论了初始平均光子数一定的情况下腔的耗散系数对量子态保真度的影响，以及当腔的耗散一定的情况下初始光场的平均光子数对量子态保真度的影响。

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

Reading Bohr: Physics and Philosophy offers a new perspective on Niels Bohr's interpretation of quantum mechanics as complementarity, and on the relationships between physics and philosophy in Bohr's work, which has had momentous significance for our understanding of quantum theory and of the nature of knowledge in general.

读博尔：物理学和哲学在尼尔斯·博尔的把量力学看作互补性身上提供一个新远景，并且在在博尔的工作里的在物理学和哲学之间的关系上，通常，已经有我们的理解量子理论的重大的意义和知识的性质。

Based on the project requirements, the research has focused on the confined electronic states in the semiconductor surface quantum wells. The moden quantum theory and advanced material growth technology have been used. The interband transitions in the surface quantum well have been studied by the in-situ photo-modulated reflection spectroscopy combined with the molecular beam epitaxy system. The optical transitions, including the tansition between ground or excited states of the electron and hole states, have been directly observed.

根据项目任务书的要求，本项研究在现代量子理论与先进材料生长技术基础上对半导体表面量子阱阱结构中的受限电子能态进行系统的光谱实验与理论研究，通过与分子束外延设备直接耦合的光调制光谱手段在原子层量级上直接观测到了表面量子阱中本征能态间的光跃迁特性，其中包括基态间的跃迁和激发态间的跃迁。

On the other hand, we introduce fidelity amplitude that weighs the stand or fall of quantum information transmission result. The high fidelity and the low fidelity amplitude is, the better capability of information transition is. In this paper, pure quantum theory method was mainly applied to study fidelity evolution problem of some typical models of quantum optics, researches on fidelities of the interacting systems between field and atom have been studied deeply.

本文运用纯量子理论，研究了一些典型有意义的量子光学模型保真度演化规律，对光场与原子相互作用的保真度演化特性作了较深入的研究，并引入描述量子信息传输性能好坏的另一个物理量保真度振幅，保真度越高，保真度振幅越小，系统的保真性能越好。

Including: Light quantum theory , propose the light quantum hypothesis.

分别是：光量子论，提出光量子假说。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。