Mass and Magnetic Moment of the Electron and the Stability of QED-A Critical Review

被引:1
作者
Bordag, Michael [1 ]
Pirozhenko, Irina G. [1 ]
机构
[1] Joint Inst Nucl Reseach, Bogoljubov Lab Theoret Phys, Dubna 141980, Russia
来源
PHYSICS | 2024年 / 6卷 / 01期
关键词
QED; electron mass; magnetic moment; PROPAGATION FUNCTION; SELF-ENERGY; FIELD;
D O I
10.3390/physics6010017
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The anomalous magnetic moment of the electron, first calculated by Schwinger, lowers the ground state energy of the electron in a weak magnetic field. It is a function of the field and changes signs for large fields, ensuring the stability of the ground state. This has been shown in the past 50 years in numerous papers. The corresponding corrections to the mass of the electron have also been investigated in strong fields using semiclassical methods. We critically review these developments and point out that the calculation for low-lying excited states raises questions. Also, we calculate the contribution from the tadpole diagram, the relevance of which was observed only quite recently.
引用
收藏
页码:237 / 250
页数:14
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