强磁场下真空极化效应对类氢原子库仑作用的影响  

Vacuum Polarization Effect on Coulomb Potential of the Hydrogen-like Atom in a Strong Magnetic Field

作　　者：温新建[1] 杨丽[1] 

机构地区：[1]山西大学理论物理研究所,山西太原030006

出　　处：《山西大学学报（自然科学版）》2014年第4期514-518,共5页Journal of Shanxi University(Natural Science Edition)

基　　金：山西省自然科学基金(No:2011011001-1)

摘　　要：极端条件下的动力学特征是当前量子场论研究的热点课题。针对强磁场下量子电动力学相互作用的特点进行讨论。主要概述了强磁场下真空极化效应对静电库仑作用的影响以及相互作用势各向异性的特点。真空极化效应来自费米子单圈图对光子有效传播子的贡献,我们通过计算坐标空间的势函数来讨论真空极化效应对库仑作用的修正。The dynamical properties under extreme conditions are hot topic in quantum field theory.We will discuss the interaction properties of quantum electrodynamics under a strong magnetic field.We mainly demonstrate the effect of the vacuum polarization on the electrostatic Coulomb interaction and the anisotropic structure of the interaction potential.The vacuum polarization effect is from the contribution of the Fermion one-loop Feynman diagram to the photon full propagator.We discuss the vacuum polarization correction to the Coulomb potential by calculating the potential function in the coordinate space.

关 键 词：量子电动力学 真空极化张量 光子有效质量 

分 类 号：O413[理学—理论物理]