Spacetime-varying couplings and Lorentz violation | Zendy

V. Alan Kostelecký | Zendy; Ralf Lehnert | Zendy; Malcolm J. Perry | Zendy

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Spacetime-varying couplings and Lorentz violation

Author(s) -

V. Alan Kostelecký,

Ralf Lehnert,

Malcolm J. Perry

Publication year - 2003

Publication title -

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Language(s) - English

Resource type - Journals

eISSN - 1089-4918

pISSN - 0556-2821

DOI - 10.1103/physrevd.68.123511

Subject(s) - spacetime , physics , lorentz transformation , lorentz covariance , supergravity , theoretical physics , coupling constant , symmetry (geometry) , cosmology , classical mechanics , mathematical physics , constant (computer programming) , causality (physics) , quantum mechanics , supersymmetry , mathematics , geometry , computer science , programming language

Spacetime-varying coupling constants can be associated with violations oflocal Lorentz invariance and CPT symmetry. An analytical supergravity cosmologywith time-varying fine-structure constant provides an explicit example.Estimates are made for some experimental constraints.Comment: 4 page

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