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arXiv · hep-ph/0308208

Apparent Lorentz violation through spacetime-varying couplings

Ralf Lehnert
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Abstract

In this talk, we explore the relation between smoothly varying couplings and Lorentz violation. Within the context of a supergravity model, we present an explicit mechanism that causes the effective fine-structure parameter and the effective electromagnetic $θ$ angle to acquire related spacetime dependences. We argue that this leads to potentially observable Lorentz violation and discuss some implications for the Standard-Model Extension.

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Ralf Lehnert. 2003-08-20. Apparent Lorentz violation through spacetime-varying couplings. https://doi.org/10.1142/9789812791160_0008

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