Derivative expansion for the one-loop effective Lagrangian in OED

被引:68
作者
Gusynin, VP
Shovkovy, IA
机构
[1] UNIV WESTERN ONTARIO,DEPT MATH APPL,LONDON,ON N6A 5B7,CANADA
[2] BOGOLYUBOV INST THEORET PHYS,KIEV 252143,UKRAINE
[3] UNIV GRONINGEN,INST THEORET PHYS,9747 AG GRONINGEN,NETHERLANDS
关键词
D O I
10.1139/p96-044
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The derivative expansion of the one-loop effective Lagrangian in QED(4) is considered. The first term in such an expansion is the famous Schwinger result for a constant electromagnetic field. In this paper we give an explicit expression for the next term containing two derivatives of the field strength F-mu v. The results are presented for both fermion and scalar electrodynamics. Some possible applications of an inhomogeneous external field are pointed out.
引用
收藏
页码:282 / 289
页数:8
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