查询词典 the quantum theory

In this paper, quantum theory, the use of time evolution operator obtained by the first method for the system density operator of any time, and atomic reduced density matrix, and the atomic dipole squeezing conditions, numerical study of the mixed state -type atom of the three-level with single-mode optical field coherent interaction of atomic dipole squeezing effect.

本文采用全量子理论，运用时间演化算符方法先求出所求系统任意时刻的密度算符，和原子的约化密度矩阵，以及原子偶极压缩的条件，数值计算地研究了混合态型3能级与单模相干光场相互作用时原子的偶极压缩效应。

For example, in general terms, as the angular momentum of the Bohr hydrogen atom quantum theory of the third assumption, In fact it is introduced to the Bohr from the correspondence principle, do not think it is a basic assumption.

比如，现在一般把角动量量子化的条件作为玻尔氢原子理论的第三个假设，而实际上它是玻尔从对应原理中推出来的，并不认为它是一个基本假设。

In this paper, an object of study in EDN, the square barrier model is set up, the mechanism of electron tunnel effect is discussed in EDN, and the explanation of Bohr quantum theory is given on the spark phenomenon in EDN.

以电火花线切割加工为研究对象，通过建立方势垒模型，阐述了电火花加工中的电子隧道效应机理，并对放电加工中出现的火花现象给出了Bohr的量子论解释。

The global crystal basis or canonical basis plays an important role in the theory of the quantum groups and their representations.

整体晶体基在量子群及其表示理论中起着重要的作用。

The main purpose of this thesis is to study the application of the representation theory in Hochschild homology and cohomology groups of algebras, Hopf algebras and quantum groups, which are very active branches at present.

本学位论文主要研究代数表示论在代数的Hochschild同调群和上同调群，Hopf代数和量子群这几个当今很活跃的数学分支中的应用。

In the thesis, based on the research foundation of Jaynes-Cumming model, the dissipation and decoherence is studied via completely quantum theory.

量子光学是近代物理学中的一个十分重要的分支，由于量子光学及近代技术的发展，量子力学的基本观点和基本规律得到了实验的验证。

Several new physics experiments in 1998 were performed and analyzed to showthe subtlety of quantum theory,including the "wave-particle duality" and the nonseparability of two-particle entangled s tate.

文摘：在1998年完成和分析的几个新的物理实验显示了量子理论的微妙性，包括"波粒二重性"以及二粒子缠结态的不可分性。

Then, inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles and quaternary ammonium salts are studied from microscope through quantum chemistry calculation, and according to the results, theory predicting and proof testing of a benzene nitrile (2-benzo butyl nitrile) are made.

利用Hansch关系的研究结果表明，苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀效率，可用苯腈类化合物氰基氮原子的净电荷密度和分子最高占据轨道能量或分子最低空轨道能量构成的表达式表达。量子化学计算研究结果表明：1、苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀机理可能是：苯腈类化合物分子以其氰基氮原子上的电子提供给铁的3d空轨道，形成配位键；同时铁的3d轨道上的电子提供给苯腈类化合物分子的能量最低空轨道，形成&反馈键&。

An extension of statistical mechanics based on quantum theory (especially the Pauli exclusion principle); applies to the behavior of atoms and particles.

基于量子理论的统计力学：应用在原子与粒子的行为上。注意，注意力集中

However, in the noncommunicative quantum theory, Wigner function can not be got similarly due to the change of physical observables.

然而在非对易量子理论中，由于物理量的转变，Wigner函数的这种构造方法不再适用。

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％。