Vacuum Cerenkov radiation in Lorentz-violating theories without CPT violation

被引：130

作者：

Altschul, Brett ^{[1
]}

机构：

[1] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.98.041603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In theories with broken Lorentz symmetry, Cerenkov radiation may be possible even in vacuum. We analyze the Cerenkov emissions that are associated with the least constrained Lorentz-violating modifications of the photon sector, calculating the threshold energy, the frequency spectrum, and the shape of the Mach cone. In order to obtain sensible results for the total power emitted, we must make use of information contained within the theory which indicates at what scale new physics must enter.

引用

页数：4

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