We derive and express for the B→π transition form factor only depending on the twist-3 distribution amplitudes by choosing an adequate chiral current correlator in the light-cone QCD sum rules.
我们选择了恰当的手征流关联函数 ,用光锥QCD求和规则去计算B到π的跃迁形状因子 ,得到的结果仅仅依赖于π介子的 3扭度光锥分布振幅 。
Exact solution of Schrdinger equation with time-dependent perturbation and the quantum transition;
含时微扰Schrdinger方程的精确求解与量子跃迁
The understanding of quantum transition can be enhanced through studying the distribution of the relative intensity of the hydrogen spectrum.
光谱强度是量度光谱的重要宏观物理量,研究氢原子光谱相对强度的分布可以加深对量子跃迁几率的认识。
We first solve the Schrodinger equation of the system and obtain a rule for the quantum transition in the trap in terms of the properties of the wave function.
首先，求解了系统的薛定谔方程，并根据所得的波函数性质，得出了阱内的量子跃迁规则，然后，在此规则下，定量描述了离子在受到扰动后的不稳定表现。
The photovoltaic effects and exciton transitions of Zn_(1-x)Cd_xSe/ZnSe multiple quantum wells were studied.
测量以GaAs为衬底的Zn1-xCdxSe/ZnSe应变层多量子阱在不同温度下(18~300 K)的光伏谱,研究Zn1-xCdxSe/ZnSe多量子阱的光伏效应和带间激子跃迁。
Stark spectroscopy(electroreflection spectroscopy) technique was applied to investigate the exciton transitions and charge transfer excitations in a Tin phthalocyanine(SnPc) polycrystalline film.
采用斯塔克（Ｓｔａｒｋ）光谱（电场调制反射光谱）技术研究了酞菁锡（ＳｎＰｃ）多晶薄膜中的激子跃迁和电荷转移。
The subband transition of In_xGa_(1-x)As_ySb_(1-y)/Al_(0.
98量子阱激光器结构的子带跃迁波长及其和阱宽间的关系进行了设计,并采用能量平衡模型计算了此应变材料体系在生长时的临界厚度。
In this thesis, the interband and intersubband transition (ISBT) optical absorption spectra in a quantum well (QW) are numerically simulated by using density matrix theory, the optical absorption and intraband dynamics of a superlattice (SL) are investigated by using exciton.
2、推导了外加光场作用下的量子阱子带跃迁时载流子运动方程;分别研究了GaAs/AlGaAs和InAs/AlSb量子阱中多体效应对子带跃迁的影响;研究了不同阱宽对子带跃迁光吸收的影响。
B Meson Transition Form Factors within the PQCD Approach
微扰QCD在B介子跃迁形状因子研究中的应用
two electron one photon transition
双电子 单光子跃迁
This process is called a quantum jump.
这种过程叫做量子跃迁。
x ray atomic form factor
x射线原子形状因子
Interchain Electronic Hopping in Conjugated Polymers
高分子聚合物中的电子链间跃迁研究
Higgins-Leighton shape factor
赫金斯-莱顿形状因子
CALCULATION OF TRANSITION PROBABILITIES OF Li IN NEW MODEL POTENTIAL METHOD
用模型势方法计算锂原子的跃迁几率
Quantum Transition in the NMR System in the Case of Producing the A-A Phase;
核磁共振系统产生A-A相时的量子跃迁
Laser Fluorescence Excitation of NO via A~2Σ←X~2Π Transition;
NO分子A~2Σ←X~2Π跃迁的荧光激发
The Unified Description of State Correction and Quantum Transition with Slight Interference;
态的微扰修正与量子跃迁的统一描述
The Investgation of Optical Transition in Er~(3+) Doped ZBLAN Glasses
三价铒离子在ZBLAN中光学跃迁的研究
Squeezed Atom Laser Oringinating From Stimulated Raman Transition
利用受激拉曼跃迁制备压缩原子激光
Bohr let neither the unpredictability nor the nonvisualizability of the quantum jump deter him from advancing the idea.
波尔并没有让量子跃迁的不可预言性以及不能使其形象化而妨碍该理论的进展。
EXPERIMENTAL PROGRESS ON STRANGE FORM FACTORS OF NUCLEON
核子(质子)奇异性形状因子的实验进展
From Existence to the Other: The Metaphysics Transition of Levinas Ethics;
从存在到他者：勒维纳斯伦理学的形上跃迁
Calculation of Oscillator Strengths and Lifetimes on the Transitions of High Rydbery States of Atom Li
锂原子高里德伯态跃迁的振子强度和辐射寿命
Study on Intersubband Transition in Al_xGa_(1-x)N/GaN Double Quantum Wells;
Al_xGa_（1-x）N/GaN双量子阱中子带间跃迁的研究
Theoretical Research on the Transition Energy and Oscillator Strength of Lithium-Like Systems;
类锂离子体系跃迁能和振子强度的理论研究