The spontaneous emission phenomenon of an excited atom is one of basic processes in quantum optics.
激发态原子的自发辐射现象是量子光学领域是最基本的过程之一。
The boundary radii of excited atoms are defined by the classical turning point of the electron moving in an atom.
应用原子激发态中一个电子所受到的作用势，借助电子运动的经典转折点，定义原子激发态的边界半径。
Both interactions of a two-level atom with a vacuum field and a excited atom with a coherent field, as examples, are discussed in detail.
作为例子，详细讨论了二能级原子与真空场的相互作用以及处于激发态的原子与相干场的相互作用。
When they breakthrough, they collide with atoms and molecules, which take some of the energy and store it, creating what's known as an excited atom.
冲破大气层过程中，这些高能粒子与高层大气的原子或分子碰撞，促使这些原子或分子吸收一部分的能量并将其储存，产生一种所谓的激发态原子。
Quantum electrodynamics formulas are applied to calculate the spontaneous emission rate of an excited atom in the vicinity of a perfect reflecting mirror.
利用腔量子电动力学计算了原子在全反射镜面附近的自发辐射率。
The target atom or ion may be excited to infinite bound states, auto-ionizing states and adjoint continuum states which can be treated in an unified manner by Multichannel Quantum Defect Theory.
电子碰撞过程可将靶原子或离子激发至无数的束缚态、自电离态和对应的连续态，多通道量子数亏损理论能够统一地处理这些激发态。
Some electron collisional transfer rates between excited states of the atom can be calculated from this model using experimental data of both sensitized and direct resonant fluorescence.
用敏化荧光和共振荧光的实验数据，可由该模型定出由于电子与原子碰撞而产生的原子能级间的转移速率。
The isotope shifts, hyperfine structure, spontaneous emission branch ratio of the first excited level and Doppler width of the atom vapor beam were measured using laser induced fluorescence.
采用原子蒸气束激光诱导荧光法测量钆原子的第一激发态的同位素位移及超精细结构、原子跃迁自发辐射的分支比和原子蒸气束的多普勒宽度。
So if we're talking about the fourth excited state, and we talk instead about principle quantum numbers, what principle quantum number corresponds to the fourth excited state of a hydrogen atom.
如果我们说的是，第四激发态，我们用，主量子数来描述，哪个主量子数对应了，氢原子的第四激发态？
Numerical results are reported of a model of the stimulated radiation force on a two-level atom, which is excited by two laser fields of different frequencies.
本文报道了在两束不同频率、不同传播方向的光束作用于二能级原子的受激辐射压力的数值结果。
When the atom is prepared in ground state or excited state initially, there appear obvious squeezing effects for the coherent optical field.
原子处在单纯的基态或激发态时光场都有明显的压缩现象出现；
Electron-electron correlation in the doubly excited states of the helium atom has been investigated by partial wave analysis, thereby the geometric character of relevant states has been revealed.
本文从分波分析入手，研究了氦原子诸双激发态内电子间的角关联，进而显示了这些态的几何特征。找出了K—量子数不同的态在分波结构上的差异，从而为K—分类规则提供了可靠的物理依据。
Study of radiative lifetimes of excited levels of the singly ionized Kr atom;
本文论述了激光双光子感应荧光法对原子能级寿命的测量。
Study of radiative lifetimes of excited levels of the singly ionized Kr atom;
本文论述了激光双光子感应荧光法对原子能级寿命的测量。
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