Čerenkov effect in Lorentz-violating vacua
Abstract
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 Čerenkov-type effect. In this context, various properties of Čerenkov 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 Čerenkov effect in more general situations.
- Publication:
-
Physical Review D
- Pub Date:
- December 2004
- DOI:
- 10.1103/PhysRevD.70.125010
- arXiv:
- arXiv:hep-ph/0408285
- Bibcode:
- 2004PhRvD..70l5010L
- Keywords:
-
- 11.30.Cp;
- 11.30.Er;
- 13.85.Tp;
- 41.60.Bq;
- Lorentz and Poincare invariance;
- Charge conjugation parity time reversal and other discrete symmetries;
- Cosmic-ray interactions;
- Cherenkov radiation;
- High Energy Physics - Phenomenology
- E-Print:
- 14 pages, 3 figures, REVTeX4