布居数

在相干布居数囚禁（coherentpopulationtrapping）部分，介绍了拉比频率、Autler-Townes效应及Fano干涉的基本概念。

In the chapter of coherent population trapping , three basic concepts , namely Rabi frequency , Autler-Townes effect and Fano interference are given .

提出了一种基于Mulliken布居数的离子性hi的表征方法，在第一性原理计算得到的Mulliken布居数与离子性之间建立了联系。

A new expression of ionicity hi based on Mulliken population was proposed . The relation between Mulliken population and ionicity was set up .

CO分子各振动能级均获得更大的布居数和激光小信号增益。

The electron impact excitation rates , the vibrational-state populations and the laser small-signal gain increase .

CO分子各振动态的布居数分布和对应的小信号激光增益系数。

The vibrational state populations of CO molecule and small signal gain with magnetic field are calculated and studied also .

固态NMR中的宽带布居数反转

Broadband population inversion in solid-state NMR

双模相干场与Bell态原子多光子作用的原子布居数演化

Time-evolution of the atom 's occupancy of two-mode field interacting with two atoms in Bell states via multiphoton process

本文提出了一个固态NMR体系中的组合180°脉冲Rx（180°），用于宽带布居数反转。

A Composite 180 ° pulse ( Indicated by Rx ( 180 ) ) for the population inversion in solid state NMR systems is presented .

Kerr效应对T-C模型中原子布居数的影响

Influence of Kerr Effect on the Atomic Occupancy in the Tavis-Cummings Model in Kerr Medium

发现在腔场的Wigner函数与原子的布居数之间存在一个简单的关系。

We find that there is a simple relation between the Wigner function of cavity fields and the atomic populations .

依赖强度耦合双光子T-C模型原子布居数的时间演化

Time Evolution of Atomic Occupancy in the Two-photon T-C Model via Intensity-dependent Coupling

迄今为止，为求得连续波CO激光器各振动能级布居数分布Nv而建立起来的速率方程仅考虑了辐射跃迁，电子碰撞，振动平动和振动振动能量传递的作用。

The established rate equations up to now for calculating the vibrational population distribution N_v of the CW CO-laser just took into account the effects from radiative , electronic collision , V-T and V-V energy transfer only .

通过对各成键原子间重叠布居数及键能分析知，U与CO的结合力较弱，O原子比C原子与U原子的结合力稍强。

The bond strength between uranium atom and carbon monoxide is weak and between uranium atom and oxygen atom is slightly stronger than between uranium atom and carbon atom which we can know by superposition population and bond energy analysis among atoms .

同时，与原子布居数差光栅相联系的四波混频（FWM）效应被广泛的研究，并受到了人们的普遍关注。

At the same time , degenerate four-wave-mixing ( DFWM ) that is something with the population difference grating was studied widely by the person .

本文在理论上研究了纳秒数量级内，运用绝热快速通道（ARP）来控制基态原子的相干性及其布居数在不同能态间的转移。

Robust control of atomic coherence and population transfer among Zeeman sublevels in the ground states of atom is investigated theoretically using adiabatic rapid passage on a nanosecond time scale .

理论分析表明脉冲激光泵浦下的光波混频过程仍可用稳态近似计算混频光强。非线性极化系数X不仅与基态布居数也与激发态布居数有关。

Theoretical analysis shows that steady state approximation is still valid for calculating intensities of pulsed laser pumped wave-mixing processes , x ( 5 ) is determined not only by the population of the ground state but also by the populations of the excited states .

玄武岩纤维/硅烷偶联剂KH560表界面的OH~-布居数和前线轨道

OH ~ - Mulliken Number And Homo-Lumo of The Interface between Basalt Fibre And Silicon Coupling Agent KH-560

对甲醇在催化剂表面不同距离的结构进行了构型优化，对优化后的结构作Mulliken布居数以及体系能量等分析，我们初步获得了在铂表面甲醇电化学氧化的机理。

The structure of chemisorptions of methanol on catalysts , followed with Mulliken overlap population and energy of the complexes has been performed . We obtain the mechanism of the electro-oxidation of methanol on platinum .

本论文从理论和实验角度阐述了铷原子Hanle构型下塞曼子能级相干布居数囚禁实验，首次在实验过程中发现了双暗态结构。

We present theoretical analysis and experimental results of coherent population trapping within Zeeman sublevels of rubidium under Hanle configuration , and bichromatic dark states are firstly observed in the experiment .

与以前实现慢光的方法如电磁诱导透明（EIT），相干布居数振荡（CPO）相比有着许多优点：与现有光通信系统兼容性好；波长可以任意调节；对泵浦功率需求不高。

Compared with previously demonstrated slow-light techniques , such as electromagnetically induced transparency ( EIT ) and coherent population oscillations ( CPO ), it has a lot of advantages : the high compatibility with the existing optical communication systems ; tunable wavelength ; low pump-power requirement .

在量子阱AlGaN/GaN中纵向光学（LO）声子散射的能够迅速的消除激光低能态的布居数，GaN的大LO声子能量（约90meV），有效地减少高温下产生激光低能态的热布居。

While the ultrafast longitudinal optical ( LO ) phonon scattering in AlGaN / GaN QWs can be used for the rapid depopulation of the lower laser state , the large LO-phonon energy ( - 90meV ) can effectively reduce the thermal population of the lasing states at higher temperatures .

用平均原子模型计算布居数。

Using average-atom model to calculate the population probabilities of atoms .

并且用数值计算方法对该组合180°脉冲的布居数反转效果进行了分析。

And the performance of population inversion of the composite 180 ?

两模微腔中四能级原子粒子布居数随时间的演化

Time-evolution of the population of a four-level atom in a two-mode cavity

基于绝热快速通道控制原子布居数及其相干性的研究

Control of population and atomic coherence by adiabatic rapid passage

与双光子场作用的三能级原子中粒子布居数的崩塌与回复

Collapses and revivals of atomic populations in a three-lever atom interacting with a two-photon field

另外，激发态能级上的稳态原子布居数也发生改变。

Friendly Number The steady-state trapped atom population in the excited level is changed also .

粉末样品中自旋3/2核体系中心跃迁的布居数反转

Population inversion of the central transition of spin-3 / 2 nuclear systems in powder samples

激光诱导原子布居数转移的探讨

On Laser - induced Population Transfer

Yb~＋贮存离子~2F（7／2）态布居数与工作参量的关系

The Relationship Between the ￣ 2F_ ( 7 / 2 ) State Population and Working Parameters

通过求解这一模型的系统状态随时间变化，数值研究了离子布居数反转的演化规律。

After solving the time-dependent states of this model , we study the evolution of population inversion for the ion numerically .