(Gravitational) Vacuum Cherenkov Radiation
arXiv:1909.11045 · doi:10.3390/sym10100424
Abstract
This work reviews our current understanding of Cherenkov-type processes in vacuum that may occur due to a possible violation of Lorentz invariance. The description of Lorentz violation is based on the Standard Model Extension (SME). To get an overview as general as possible, the most important findings for vacuum Cherenkov radiation in Minkowski spacetime are discussed. After doing so, special emphasis is put on gravitational Cherenkov radiation. For a better understanding, the essential properties of the gravitational SME are recalled in this context. The common grounds and differences of vacuum Cherenkov radiation in Minkowski spacetime and in the gravity sector are emphasized.
17 pages, 4 figures, 1 table
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- Hamiltonian formulation of an effective modified gravity with nondynamical background fields
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- Impact of Lorentz violation on anomalous magnetic moments of charged leptons
- Tree-level unitarity, causality and higher-order Lorentz and CPT violation
- Gravitational and electromagnetic Cherenkov radiation constraints in modified dispersion relations
- Do anomalies break the momentum routing invariance?