Čerenkov effect in Lorentz-violating vacua

The emission of electromagnetic radiation by charges moving uniformly in a Lorentz-violating vacuum is studied. The analysis is performed within the classical Maxwell-Chern-Simons limit of the Standard-Model Extension and confirms the possibility of a Cerenkov-type effect. In this context, various p...

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Bibliographic Details
Published in:Physical review. D, Particles and fields Particles and fields, 2004-12, Vol.70 (12), Article 125010
Main Authors: Lehnert, Ralf, Potting, Robertus
Format: Article
Language:English
Subjects:
CHERENKOV RADIATION
CONSERVATION LAWS
EMISSION
LORENTZ INVARIANCE
MAXWELL EQUATIONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POLARIZATION
STANDARD MODEL
SYMMETRY
VACUUM STATES
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Summary:The emission of electromagnetic radiation by charges moving uniformly in a Lorentz-violating vacuum is studied. The analysis is performed within the classical Maxwell-Chern-Simons limit of the Standard-Model Extension and confirms the possibility of a Cerenkov-type effect. In this context, various properties of Cerenkov radiation including the rate, polarization, and propagation features, are discussed, and the backreaction on the charge is investigated. An interpretation of this effect supplementing the conventional one is given. The emerging physical picture leads to a universal methodology for studying the Cerenkov effect in more general situations.
ISSN:1550-7998
0556-2821
1550-2368
1089-4918
DOI:10.1103/PhysRevD.70.125010