用克莱因-戈登方程推导两质子之间的库仑势  

Deducing Coulomb potential by Klein-Gordon equation

作　　者：罗运文[1] 

机构地区：[1]漳州师范学院物理与电子信息工程系,福建漳州363000

出　　处：《大学物理》2010年第11期29-30,共2页College Physics

摘　　要：量子电动力学认为库仑力是电荷之间交换虚光子的结果,最有力的证据是从虚光子假说直接推出库仑势能.克莱因-戈登方程(□2-m2)Φ(x,t)=0是一个用来描述质量为m,自旋为0,电荷为0的标量场的场方程,虚光子可以用粒子静止质量为0的标量场描述,因此满足克莱因-戈登方程□2Φ(x,t)=0.本文利用克莱因-戈登方程推导两质子之间的库仑势.Quantum electrodynamics tells us that the coulomb potential is produced by exchanging virtual photon between the electric charge, but the most direct proofs are deduced from the coulomb potential in terms of the theory of virtual photon. The Klein-Gordon equation （□^2-m^2） Ф（x, t） = 0） is used to describe the scalar field with the mass m, zero spin and zero charge. The virtual photons can be described by the scalar field with its mass zero, so it satisfies the Klein-Gordon equation： □^2Ф（x, t） = 0. The coulomb potential is also deduced by using the Klein.-Gordon equation.

关 键 词：克莱因-戈登方程 库仑势 虚光子 

分 类 号：O413.3[理学—理论物理]