偶相干态光场中原子布居数反转的衰减速度较慢；
The value of atomic population inversion in a Yurke-Stoler coherent state is between them.
结果表明原子量子化平移运动敏感地依赖于原子的内态布居。
It is found that the atomic quantized translational motion sensitively depends on the atomic internal state population.
推导了三步光电离的场方程组和原子布居的密度矩阵方程组。
The equation of three step photoionization for describing the field and the density matrix as well as the atomic population was derived.
通过数值计算，讨论了原子能级布居的统计几率与压缩的关系。
The relation between the statistical probability of atomic level population and the squeezing is studied by numerical calculations.
应用分波展开法，通过电离态上的粒子布居，研究了电离相干现象。
The phenomenon of ionization interference is studied with partial-wave expansion method through the particle population of the ionized state.
本文讨论了利用计算机模拟技术研究传能产物振动布居的理论和方法。
The method of computer simulation in the study of vibrational distributions for the products from the energy transfer reaction is discussed.
在非绝热耦合作用下，部分里德伯态的布居能够涌入价态并且被其捕获；
Under the action of the non-adiabatic coupling, a part of populations of the Rydberg state can pour into and be trapped in the valence state.
结果表明，场熵的时间演化规律与原子布居差的时间演化规律非常相似。
The results show that the field entropy evolution properties are similar to the time evolution of atomic particle's occupancy.
具有特殊的结构，用电子布居分析和振动模式分析来研究这种特殊结构。
The electron population and vibrational mode analysis were carried out to study their unique structures.
量化计算所得原子轨道贡献和原子净电荷布居分析结果与晶体结构中的配位情况相符。
The orbital contribution and atomic net charge results had provided a good testimony for the coordinated condition in the crystal structure.
利用B3LYP方法和不同的基组对这三种阳离子及其分子进行了自然布居分析计算。
The natural population analysis calculations at the B3LYP level with different basis sets were performed on the three cations and the three parent molecules.
对于主要通过碰撞实现高位能级布居的过程，加入缓冲气体对高位能级布居起关键作用。
For collisional high lying state population, injection of buffer gas will be the key function to high lying state population.
密立根布居分析、周期性结构中态密度与能带结构，以及分子轨道的关系在文中被广泛应用。
Mulliken population analysis, the relations among the DOS, the band structure and molecule orbital were widely used in the dissertation.
相对论电子在某种粒子数反转布居的分子云中穿行时，可以产生具有反常强度比的微波发射谱线。
Microwave emission lines with anomalous intensity ratio would be produced when the relativistic electrons move through a, molecular cloud with a certain population inversion.
从结合能、C O键长、轨道布居、态密度等方面比较了C与金属成键强度及CO分子被活化程度。
The chemisorption properties, including the length of CO bond, orbital population and density of states, are computed and analyzed respectively.
研究表明，不同面积的超短脉冲在介质中传播时脉冲波形及介质各能级粒子布居的空间分布规律明显不同。
The study result shows that, the space distribution law of pulse shape and populations for different area few-cycle pulses are different evidently.
随着脉冲面积的增大，脉冲振荡次数减少，振幅增大，传播速度增大，介质各能级粒子布居振荡次数也增多。
The oscillation times decrease with increasing of the initial area of the pulse, but amplitude, group velocity and the medium populations oscillation times of every level increase.
利用速率方程理论，得到包含激光增益介质反转密度、光子密度和饱和吸收介质基态布居数密度的速率方程组。
Using rate equation theory, the equation group including the population inversion density of the gain medium, photon density and the absorber ground state population density is acquired.
将计算得到的不同时刻的布居分布与热分布作了比较，发现受激光激发的激发态分子的布居分布与热分布不同。
Comparison the calculated distributions of CF3I at various time, it was found that the laser excited population distribution was different from the thermal distribution.
这个动力学机理可以运用类似经典粒子在等效相互作用势中运动的来说明，并由原子布居数转移率的演化来证明。
The dynamic mechanism is demonstrated by performing a coordinate of classical particle moving in an effective potential field, and confirmed by the evolution of the atom population transferring ratio.
通过对不同激光场强条件下的电子态布居转移，研究得到了泵浦光、探测光强度与各电子态布局转移分布的关系。
By studying the electronic state populations under different laser intensities, we got the relationship between laser intensities and populations.
结果表明当取合适的激光参数时，可以实现布居数在量子态间的有效跃迁，从而一定程度上可以实现量子态的人工控制。
The result shows that the population can be completely transferred to the target state by changing the parameters of the laser pulse and achieve manual controls to a certain degree.
利用全量子理论，在相互作用绘景中研究了两个耦合二能级原子与单模压缩相干态光场相互作用系统粒子布居几率的时间演化规律；
The atomic population evolution vs. time in the system of two two-level coupling-atoms interacting with squeezed coherent light field is investigated.
本文运用碰撞—辐射模型，在给定的等离子体参数条件下，计算了“纯原子”弛豫过程及各能级的粒子数布居，并对计算结果进行了讨论。
With the C- R model, on the condition of given plasma parameters, we calculated the "pure atomic" relaxation and population of Li- like Al ions.
研究了频率随时间变化的压缩态光场与二能级原子的相互作用，主要讨论了光场频率随时间作正弦调制和脉冲调制两种典型情况下原子布居数反转随时间的演化特性。
The time evolution of atomic occupancy for the system of squeezed vacuum field interacting with two coupling atoms via intensity-dependent coupling in two-photon transition are investigated.
从三能级原子的主方程出发，给出了能级近似等间距梯型三能级原子在单色驻波场中所受偶极力的稳态解，并进行了数值计算作图分析了偶极力，能级布居率随失谐量，光场幅度和空间的变化。
The dipole forces steady solution of a ladder-type three-level atom of nearly equispaced energy level driven by a standing wave is derived from the atomic master equation.
其他西南民族,比如纳瓦加和阿帕奇,相对而言更像游牧民族.他们靠打猎,采集和袭击那些定居的邻居以便获得粮食而生.因为这些部族经常到处移动,他们的房子也不像布洛那样适合永居.纳瓦加人标志性的东朝向圆屋叫做赫甘,是用泥巴和树皮搭建的.
Other Southwestern peoples, such as the Navajo and the Apache, were more nomadic. They survived by hunting, gathering and raiding their more established neighbors for their crops.
本周二发布的一项报告显示，冰岛和其它三个北欧国家的性别平等程度居全球之首。
Iceland and three other Nordic countries lead the world in gender equality, according to a report released on Tuesday.
本周二发布的一项报告显示，冰岛和其它三个北欧国家的性别平等程度居全球之首。
Iceland and three other Nordic countries lead the world in gender equality, according to a report released on Tuesday.
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