Relativizing relativity
classification
⚛️ physics.class-ph
astro-phquant-ph
keywords
relativitysignallingbeyondbirefringentconescontextsconventionalitydiscussed
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Special relativity theory is generalized to two or more ``maximal'' signalling speeds. This framework is discussed in three contexts: (i) as a scenario for superluminal signalling and motion, (ii) as the possibility of two or more ``light'' cones due to the a ``birefringent'' vaccum, and (iii) as a further extension of conventionality beyond synchrony.
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