【摘 要】
：
考虑一个自由电子以动量p运动时因吸放虚光子而引起自能的辐射修正,用非协变形式的量子微扰论算出它有b2p4的形式. 在此基础上加上真空极化修正和核有限半径引起的修正,算得
【机 构】
：
复旦大学物理系,Department of Physics
论文部分内容阅读
考虑一个自由电子以动量p运动时因吸放虚光子而引起自能的辐射修正,用非协变形式的量子微扰论算出它有b2p4的形式. 在此基础上加上真空极化修正和核有限半径引起的修正,算得氢原子2S1/2-2P1/2态的兰姆移位为1056.522 MHz,比实验值1057.845 MHz仅小0.13%.用Dirac方程作相对论性修正后,还计算了氢原子4D5/2-4S1/2态的能级差,所谓"超兰姆移位"和1S态的"绝对"兰姆移位. 误差最大达6.7%,并分析了原因.
其他文献
The boundary behavior of the Bergman kernel function of a kind of Reinhardt domain is studied. Upper and lower bounds for the Bergman kernel function are found
从热力学关系,得到来自相对论核碰撞形成的夸克-胶子系统的初始值. 基于这些初始值,在相对论流体力学模型下研究了双轻子的产生,发现随着入射能量的增加,一个标志夸克-胶子等
从QCD出发,未作近似推导出了赝标量Goldstone玻色子的有效手征拉氏量(ECL)理论.并以QCD中格林函数的形式给出了直到p4阶的ECL的系数的定义.
Numerical simulations based on a multimode rate-equation model is used to study the effect of fiber Bragg grating (FBG) external cavity reflectors on the perfor
We have developed a compact Ti:sapphire laser system which can generate 5.4-TW pulses at 10-Hz repetition rate.Chirped-pulses are amplified to 450 mJ by a regen
Since Doo-Sabin and Catmull-Clark surfaces were proposed in 1978, eigenstructure, convergence and continuity analyses of stationary subdivision have been perfor
Dynamical stability has become the center of study on Hamiltonian system. In this article we intro-duce the recent development in some areas closely related to
The metal thin film delamination along metal/ceramic interface in the case of large scale yielding is studied by employing the strain gradient plasticity theory
The variational equation of the Birkhoffian system is established,by which it is proved that an integral invariant can be constructed with a known first integra
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7