| Constraining Lorentz violation with cosmology. | |
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MedLine Citation:
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PMID: 19113765 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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The Einstein-aether theory provides a simple, dynamical mechanism for breaking Lorentz invariance. It does so within a generally covariant context and may emerge from quantum effects in more fundamental theories. The theory leads to a preferred frame and can have distinct experimental signatures. In this Letter, we perform a comprehensive study of the cosmological effects of the Einstein-aether theory and use observational data to constrain it. Allied to previously determined consistency and experimental constraints, we find that an Einstein-aether universe can fit experimental data over a wide range of its parameter space, but requires a specific rescaling of the other cosmological densities. |
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Authors:
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J A Zuntz; P G Ferreira; T G Zlosnik |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Physical review letters Volume: 101 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2009-05-13 Completed Date: 2009-05-27 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 261102 Citation Subset: - |
Affiliation:
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Astrophysics, University of Oxford, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, United Kingdom. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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