Spacetime-varying couplings and Lorentz violation

Kostelecky, V. Alan; Lehnert, Ralf; Perry, Malcom J.

http://hdl.handle.net/10400.1/11255

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Authors

Kostelecky, V. Alan

Lehnert, Ralf

Perry, Malcom J.

Abstract(s)

Spacetime-varying coupling constants can be associated with violations of local Lorentz invariance and CPT symmetry. An analytical supergravity cosmology with a time-varying fine-structure constant provides an explicit example. Estimates are made for some experimental constraints.

Keywords

Higher dimensional theories Fine structure constant Cpt violation Fundamental constants Time variation Testing cpt Strings Invariance System Electrodynamics