On the vacuum Cherenkov radiation in noncommutative electrodynamics and the elusive effects of Lorentz violation

被引：10
|
作者：
Castorina, P
Iorio, A
Zappalà, D
机构：
[1] Univ Catania, Dipartimento Fis, I-95123 Catania, Italy
[2] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy
[3] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA
[4] Univ Salerno, Dipartimento Fis, I-84081 Baronissi, Italy
[5] Ist Nazl Fis Nucl, Grp Coll Salerno, I-84081 Baronissi, SA, Italy
来源：
EUROPHYSICS LETTERS | 2005年 / 71卷 / 06期
关键词：
D O I：
10.1209/epl/i2005-10178-y
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We show that in the framework of noncommutative classical electrodynamics Cherenkov radiation is permitted in vacuum and we explicitly compute its spectrum at first order in the noncommutative parameter. We discuss the phenomenological impact of the merge of this new analysis with the old results of the substantial modi. cation to the spectrum of the synchrotron radiation obtained in Castorina P., Iorio A. and Zappala D., Phys. Rev. D, 69 ( 2004) 065008. We propose to consider the pulsars' radiation spectrum - due to its very strong magnetic field - to investigate these Lorentz violating effects in astrophysical phenomena.
引用
收藏
页码：912 / 917
页数：6
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