Problems with gauge invariance in Lorentz-violating QED

被引：0
|
作者：
Altschul, B [1 ]
机构：
[1] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
来源：
LAUNCHING OF LA BELLE EPOQUE OF HIGH ENERGY PHYSICS & COSMOLOGY | 2005年
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the radiative generation of a Chern-Simons addition to the effective action for a Lorentz-violating modification of electrodynamics. The coefficient of the induced Chern-Simons term is manifestly finite, but also potentially indeterminate. However, several values have been suggested as having special significance. We discuss two such special values, and it turns out that neither of them can be made consistent with the gauge invariance properties of the theory.
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页码：341 / 348
页数：8
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