最弱受约束电子势模型下AuⅠ原子Rydberg态能级计算

在最弱受约束电子势模型理论框架下,将推广Martin公式中最低能级的量子亏损值用实验中最低能级的量子亏损值取代,对AuⅠ原子高激发态n2D2/3(n≥18)和n2S1/2(n≥21)能级进行了计算,计算结果与实验值符合较好,进一步扩展了推广的Martin公式的适用范围。     

Stark spectra of Rydberg states in atomic cesium in the vicinity of n=18

The Stark structures in a cesium atom around n=18 are numerically calculated. The results show that the components of 20D states with a small azimuthal quantum number |m| shift upward a lot, and those with a large |m| shift downward a little within 1100 V/cm. All components of P states shift downward. Experimental work has been performed in ultracold atomic cesium. Atoms initially in 6P3/2 state are excited to high-n Rydberg states by a polarization light perpendicular to the field, and Stark spectra with |m|=1/2,3/2,5/2 are simultaneously observed with a large linewidth for the first time. The observed spectra are analyzed in detail. The relative transition probability is calculated. The experimental results are in good agreement with our numerical computation.     

How do quantum numbers generally vary in the adiabatic transformation of an ideal gas？

We continue to analyse the known law of adiabatic transformation for an ideal gas PV^5/3 = Constant, where P is the pressure and V is the volume, and following the approach of non-relativistic quantum mechanics which we suggested in a previous work (Yarman et al. 2010 Int. J. Phys. Sci. 5 1524). We explicitly determine the constant for the general parallelepiped geometry of a container. We also disclose how the quantum numbers associated with molecules of an ideal gas vary through an arbitrary adiabatic transformation. Physical implications of the results obtained are discussed.     

反应物振动激发对反应He+H+2→HeH++H影响的准经典轨线研究

基于PPA势能面(Palmieri,P.;Puzzarini,C.;Aquilanti,V.Mol.Phys.,2000,98:1835),运用准经典轨线(quasi-classical trajectory)方法,对反应He+H+2(v=0-2,j=0)→HeH++H的立体动力学性质进行了理论研究.结果表明,反应物振动激发对反应的k-j'两矢量相关和k-k'-j'三矢量相关分布都产生了较大影响.除此之外,极化微分反应截面对振动量子数v也非常敏感.     

镧系元素化合物的物性参数与角量子数的相关分析

刘稀土元素及其化合物的物性数据进行系统分析和研究,从中寻找出一些普遍规律,是一项十分有意义的工作。它有助于对稀土元素及其化合物性质的了解,促进稀土在各行各业中的广泛应用。 研究表明,如果以镧系元素及其化合物的物性数据P_i对其原子序数Z作图,则大多呈现出明显的四分组效应,或称为双-双效应,即镧系元素可按其性质分为四个组:La-Ce-Pr-Nd、Pm-Sm-Eu-Gd、Gd-Tb-Dy-Ho、Er-Tm-Yb-Lu,其中钆兼存于第二和第三组中。     

Possible Origin of Magnetic Fields in Very Dense Stars

We discuss the bosonization of a relativistic very dense Fermi gas in a magnetic field and the consequent BoseEinstein condensation of the resulting relativistic vector gas of charged particles. The model may be applied to paired spin-up electrons. We show that such systems may maintain self-consistently magnetic fields of order 10^10 - 10^13 G. That pairing could be the origin of large magnetic fields in some white dwarfs and neutron stars.For fields large enough (- 10^13 for white dwarfs), the system becomes unstable and collapses.     

Probing into Magnetic Field and Initial Period of Neutron Star

Using the hybrid model and the neutrino jet rocket model, we calculate the magnetic fields and the initial periods of 72 pulsars. We probe into the possible connection among magnetic field, initial period, and initial quantum number.     

原子外层轨道能级与电子的电离顺序

本文根据光谱实验结果和量子数意义,归纳出一个n、1规则:E=n+1-(1-0.75)/(1+1)。n为主量子数,l为角量子数。计算的E值大小,可用来判别原子外层轨道能级高低顺序,确定原子核外电子的电离顺序,预测新的元素周期等。     

电负性标度和电子亲和能的规律性研究II. 电子亲和能的规律性研究

本文研究了不同情形下, 绝对硬度η与~nt(r为轨道半径, n, I 为轨道的主量子数和角量子数)的关系, 并在前文提出的Z/~nl与Mulliken 电负性关系基础上, 将元素电子亲和能A同时与Z/~nl和~nl相关起来, 并表示成A=αZ/~nl+b~nb+c(a, b, c为常数)。我们研究了这种关系在周期表中各族及各过渡系的拟合结果, 不但计算值与电子亲和能的实验值非常吻合, 而且拟合的相关程度很高。本文方法为系统研究电子亲和能的变化规律提供了简单可行的途径。     

双原子分子振动对热力学性质的影响

本文在分析了双原子分子振动能级的完备性和有限性及其对统计计算带来的影响的基础上,借助代数（AM）方法得到的双原子分子振动能级完全集合,采用量子力学统计系综方法,讨论了双原子分子振动能量对宏观热力学性质的统计贡献,并以氮气为例计算了相应的热力学函数和振动热容量．结果表明,真实的双原子分子振动能级是有限的;确定最高振动量子数和振动能级完全集合是正确进行统计分析的基础和关键;考虑振动能级的完备性和有限性后,只能导致数值解而不是解析解,所得的结果优于谐振子模型的解析结果,与实验数据吻合得很好．