Theoretical Topics in Spacetime-symmetry Violations
نویسنده
چکیده
The Lorentzand CPT-violating Chern–Simons extension of electrodynamics is considered. In the context of N = 4 supergravity in four spacetime dimensions, it is argued that cosmological solutions can generate this extension. Within Chern– Simons electrodynamics, theoretical and phenomenological topics are reviewed that concern the number of the remaining spacetime symmetries and the vacuum Cherenkov effect, respectively.
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