Induced Chern-Simons-like action in Lorentz-violating massless QED

被引：43

作者：

Brito, F. A. ^{[1
]}

Grigorio, L. S. ^{[2
]}

Guimaraes, M. S. ^{[2
]}

Passos, E. ^{[1
,3
]}

Wotzasek, C. ^{[2
]}

机构：

[1] Univ Fed Campina Grande, Dept Fis, BR-58109970 Campina Grande, Paraiba, Brazil

[2] Univ Fed Rio de Janeiro, Inst Fis, Rio De Janeiro, Brazil

[3] Univ Fed Paraiba, Dept Fis, BR-58051970 Joao Pessoa, Paraiba, Brazil

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.78.125023

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the present work, we study different aspects of Lorentz and CPT symmetry violation in extended massless QED. By following the observation that the 2+1-dimensional Maxwell-Chern-Simons theory can be originated from the 3+1-dimensional Chern-Simons-like action, we also focus on the fermion sector to relate the 3+1 dimensional extended massless QED to 2+1-dimensional massive QED. We take advantage of this to state that the Chern-Simons-like action in extended massless QED can be induced with its coefficient being well defined and finite just as its 2+1 counterpart. We make use of three different regularization schemes by inducting the Chern-Simons-like term in 3+1 dimensions to support the conjecture.

引用

页数：7

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