查询词典 spontaneous emission

Therefore there exist the so called vacuum fluctuations. In the QED, for example, there exist the effects of zero-point oscillations of photons, the effects of vacuum polarization of electron-positron paris, and so on. They all could result in observable consequences , such as the anomalous magnetic moment of the electron, the spontaneous emission of atoms in excited states, the Lamb shift and the Casimir effect, which have been verfied in experiments.

例如，在量子电动力学中真空中存在着光子的真空零点振动效应，正负电子对的真空极化效应等等，它们都导致可观测的物理效果，如磁矩反常、激发态原子自发辐射、兰姆移动、卡西米尔效应等。

Recent investigations on quantum interference effects were introduced, including line-shape variation, spontaneous emission enhancement or cancellation, constructive interference and electromagnetically induced transparency in molecular and atomic-molecular mixed systems in our laboratory.

概述了近年来我们实验室将原子中量子干涉推向分子及分子-原子混合体系中量子干涉效应的研究，内中涉及基于量子干涉的分子跃迁线型畸变、发辐射的相消和相长、子干涉的影响因素、子一原子混合系统中的量子干涉相消和相长、磁自感应透明等。

According to the Weisskopf-Wiger theory, the spontaneous emission decay in the free space is following an exponential decay law with the constant decay rate.

在第二章中，主要研究了多层结构中二能级原子非马尔科夫自发衰减过程的记忆函数。

By applying this scheme, in presence of spontaneous emission, the decoherence can be efficiently suppressed.

通过应用这种机制，在存在自发辐射的情况下，可以有效地抑制退相干。

We experimentally demonstrate that the output power of spontaneous emission in degeneracy cavity is larger than in non-degeneracy cavity.

我们在实验上也证明了在简并腔位置自发辐射的输出功率会比非简并腔位置高。

It is found that the spontaneous emission spectrum is anisotropic in the presence of Doppler broadening.

在多普勒效应加宽时，共振荧光光谱是各向异性的。

The effects of the fine structure of the ground state levels on the spontaneous emission spectrum of an atom are studied in the first model.

在第一个模型中，研究了原子的基态能级的精细结构对自发辐射谱的影响。

According to the experiment, the characteristics of the spontaneous emission spectra are analyzed.

结合实验，对激光器的自发发射谱的特性进行了研究。

And we study other property of spontaneous emission.

并对原子的自发辐射的其它特性进行了分析。

The discussion emphasizes particularly on some important issues closely related to the slow manifold of the atmospheric motion such as properties of the balance dynamics, the spontaneous emission of inertia gravity wave from balance flow, theory and application of PV inversion and the relation to initialization issue of numerical model. Moreover, an overview of the history and the state of the art of researches in this field are given to provide domestic researchers of relevant topics a clue for the understanding of general picture of this field and entering into specific research issues.

文中侧重于讨论与大气运动的慢流形密切相关的一些重要问题，包括平衡运动或平衡流的性质以及它对惯性重力波的自发辐射、PV反演理论和应用、与数值模式初始化问题的联系等，并对上述研究领域的研究历史和现状也进行了较为全面的综述，旨在为国内气象界相关方向的研究者提供了解该领域概貌并较快切入具体研究问题的线索。

The shaping method of noncircular part and the tool holder's radial motion characters in noncircular turning process are discussed in detail in the thesis.

论文详细研究了非圆零件的成型方法和加工过程中刀架的径向运动规律。

I have not really liked him,I do not like his this kind of disposition.

我没有真的喜欢他，我不喜欢他的这种性格。