查询词典 the quantum theory

The spread of the periodic wave, the advantage and disadvantage of the solid dynamic theory, the orderly system and the disorderly system physics; It also discuss the classification of the phase transformation and the division between the quantum method and the classical method in the condensed matter physics; and also point out the major developing trend of the present condensed matter physics.

对周期波的传播、固体能带理论的优缺点以及有序体系和无序体系的物理学；相变分类、凝聚态物理中量子方法与经典方法的界定进行了讨论，并指出了凝聚态物理发展的主要方向。

The non-relativistic energies and wave functions were determined by Rayleigh-Ritz method. The relativistic effects, including the correction to kinetic energy, the electron-electron contact term, and the orbit-orbit interaction, Darwin term, and mass-polarization effect on the energies were calculated by using first-order perturbation theory. In order to obtain a more accurate result for the larger Z system, the quantum-electrodynamics correction should be included. This correction to energy can be evaluated for the valence electron by using a hydrogenic formula with an effective nuclear charge, Z. The ionization potential, the excitation energies and the fine structure split-tings for a lithium-like ion with higher nuclear charge (Z=26) were calculated.

非相对论能量用Rayleigh-Ritz变分法确定，包括动能修正、电子—电子接触项、轨道—轨道相互作用项以及Darwin项的相对论修正和质量极化项由全实加关联波函数的一阶微扰给出，量子电动力学修正由有效核电荷方法和类氢公式计算；给出了较高核电荷(Z=26)类锂体系1s^2nl组态的电离能、激发能和1s^2np组态的精细结构劈裂。

In terms of the topological invariant in Riemann-Cartan spacetime proposed by Prof. Duan and the φ-mapping topological current theory, we gave the cosmic strings with the complex scalar field and showed that the strings appear in the zeroes of the scalar field. Meanwhile one can find that the length of cosmic strings is quantized in the topological level and the quantum number is determined by Hopf indices and Brouwer degrees.

以段一士教授提出的Riemann-Cartan流形中的新拓扑不变量为基础研究了宇宙弦的拓扑结构，指出宇宙弦只能存在于复标量场的零点处，而且在拓扑层面上是量子化的，而该量子数决定于Hopf指数和Brouwer度。

I analyzed this circs from theory, and found the mathematics model between the velocity of flow and the quantum of resistance.

从理论上对这种情况进行分析，建立了流速与电阻之间的变化关系的数学模型。

But the complexity of the quantum transport theory for gluons blocks the way to analysis concrete problems.

但是，因为胶子量子输运理论的复杂性，很难将其直接应用于对实际问题的分析中。

The best way to use cellular automata on computers is to incorporate the fundamental interactions of the Standard Model of Leptons and Quarks plus the gravitational interaction of the general theory of relativity, or preferably its quantum gravitational version when available.

如果我们有一台运行细胞自动机的计算机，要实现上述情形最好的办法是，根据广义相对论建立涵盖所有轻子和夸克的标准模型，并实例化粒子之间的基本作用力，或采用更可行的量子力学模型。

By extending the quantum-well theory for the metallic multilayers to the case ofnon-metallic spacer,we have studied the bilinear coupling with the method of totalenergy calculation and determining self-consistently the Fermi energy.

把金属磁性多层膜的量子阱理论推广到磁性隧道结中，并利用总能计算和自洽求解费密能的方法研究了层间耦合。

Recently, much attention has been attracted to the theory and experiment about nonlinearity at the low light levels in the quantum optics and laser physics fields.

近年来，有关弱光下非线性效应的理论和实验逐渐成为量子光学和激光物理学中重要的前沿课题。

In order to study the spilt spectrum of Zeeman effect experiment, the method for the spilt spectrum line of Hg(546. 1 nm) in magnetic field is analyzed based on quantum theory analysis and CCD image disposal.

为了研究塞曼效应的谱线分裂情况，用量子理论和CCD图像相结合的方法分析了Hg(546.1 nm)谱线在外磁场中的分裂。

Thus by measuring the frequency shift for a known field strength, e/me can be determined. Many spectral lines, however, exhibit a much more complicated splitting, often into many components, known as the "anomalous" Zeeman effect, because it could not be explained for many years after its discovery until the development of quantum theory.

然而，很多谱线表现出更加复杂的分裂，常常分裂成很多成分，这种现象被称作&不规则&塞曼效应，因为发现这种效应后的很长一段时间内人们无法对其解释，直到量子理论发展起来。

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％。