查询词典 quantum theory

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。

Since1973, when Hawking discovered the thermal radiation of black hole, this problem has been widely studied by means of theory of quantum field in curved space-time, Green's function method and the conformal transformation etc.

从1973年霍金发现黑洞热辐射起，人们对这个问题采用弯曲时空的量子场论、格林函数法、共形变换等方法进行了广泛的研究。

The covalent bond theory in quantum mechanics is used to describe scientifically the dynamic character of the boundary of enterprise, and the notional model of the enterprise fuzzy and dynamic boundary is founded in this paper.

第一，为了科学的描述企业的边界是如何呈现出模糊动态性的，引入量子力学中共价键的相关理论，构建了企业模糊边界概念模型。

A relativistic and quantum kinetic theory for quarks and gluons has been derived based on covariant Wigner operators.

人们已经从协变的Wigner算符出发，得到了夸克和胶子的相对论量子运动理论。

This then is something of a cursory view of the direction taken by contemporary quantum field theory.

这就是对现代电子场论的趋向的粗略的一瞥。

These results are derivable from the theory of quantum mechanics.

这些结果是根据量子力学理论推导出来的。

From the fundamental theory of the teleportation, an arbitrary two-partite state can be teleported via a quantum channel of common eigenstates of number sum operator and phase difference operator.

本文从基本的隐形传态理论出发，用粒子数和算符以及相位差算符，并通过这两类算符的共同本征态作量子通道实现了任意两粒子态的隐形传态。

The Part Ⅱ of this thesis is about the development and applications of quantum dissipation theory .

论文的第二部分是关于量子耗散理论的发展和应用。

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。

In this thesis, we focus on the theory for the interaction of molecular dipole moment with external electric field and use the numerical simulation to investigate the rotational state-selection of polar molecules in a hexapole electric field and the laser-field role of alignment or orientation for molecules based on semi-classical treatment, the detail is the numerical calculation for a quantum mechanical treatment of molecules and their interaction with the external field and a classical electrodynamical treatment for static electric field.

本文研究是在描述分子偶极矩（永久偶极矩或诱导偶极矩）和外电场相互作用的基础上，我们建立了对分子态选择和角动量取向、准直研究的半经典理论框架（即分子体系状态、能量及与外场相互作用使用量子理论描述，分子的运动轨迹使用经典电动力学描述），并利用数值计算方法对静电场和随时间变化电场作用下分子的转动态选择、取向和准直过程进行了研究。

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％。