parity selection rule是什么意思

用法例句

Discovery of non-conservation of parity is an important event in the development history of physics.

宇称不守恒的发现是物理学发展史上的一个重大事件。

20 century began from the research of symmetry,the discovery of nonconservation of parity starts epoch of research of breaking symmetry.

20世纪开始于对称性研究,宇称不守恒开创了研究对称破缺的新纪元。

In this paper, we discussed the transition selection rule of electrical dipole radiation in atom physics by the parity theory and angular momentum theory in quantum.

本文利用量子力学的宇称理论和角动量理论，对原子物理学中所熟知的电偶极辐射的跃迁选择定则进行了理论探讨。

The author analyses the differences and relationships between Dirac s equation and 2-Component neutrino theory, then shows that experment of polarzed C_o￣(60) has not overthrown the law of parity conservation.

文中分析了狄拉克方程与二分量中微子理论的区别和联系，证明了极化Ｃｏ６０等实验并未推翻宇称守恒定律。

It is shown that parity conservation is verified for the Hamiltonian system operatorwith inversion space invariance for the case u(-x)=-u(x).

当u(x)是奇函数时,体系的哈密顿算符^H具有空间反演不变性,宇称守恒。

The physical quantities such as energy difference δ E_I of the positive and negative parity states of the same spin, moment of inertia J￣(1) and J￣(2), electric dipole transition branching ratios of first negative parity states and the relations between them and angular momentum or rotational frequency ω and mass number A are obtained from the experimental data.

从锕系区４０多个核的正负宇称态的实验数据，如激发能、Ｊπ、电偶极跃迁等，得到一系列与核结构有关的物理量，如宇称劈裂能级差δＥＩ，正负宇称带的第一和第二类转动惯量Ｊ（１）和Ｊ（２）及第一负宇称态的电偶极跃迁强度比等，以及它们与角动量Ｉ或转动角频率ω的动力学和核子数Ａ的系统行为，从而为研究锕系核负宇称态的产生机制及动力学特点提供了信息。

It is shown that two dots can be coupled coherently, which is reflected in the appearance of parity effects and the complex current-phase relation in this system.

结果表明 ,在这个系统中 ,宇称效应和复杂的电流 相位关系的出现反映了两个量子点可以相干耦合 。