Constraining Lorentz violation with cosmology.
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...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2008
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| _version_ | 1826287966489673728 |
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| author | Zuntz, J Ferreira, P Zlosnik, T |
| author_facet | Zuntz, J Ferreira, P Zlosnik, T |
| author_sort | Zuntz, J |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-07T02:06:36Z |
| format | Journal article |
| id | oxford-uuid:9f3761e2-abe1-40c4-bc6d-b615418285de |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:06:36Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | oxford-uuid:9f3761e2-abe1-40c4-bc6d-b615418285de2022-03-27T00:55:44ZConstraining Lorentz violation with cosmology.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9f3761e2-abe1-40c4-bc6d-b615418285deEnglishSymplectic Elements at Oxford2008Zuntz, JFerreira, PZlosnik, TThe 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. |
| spellingShingle | Zuntz, J Ferreira, P Zlosnik, T Constraining Lorentz violation with cosmology. |
| title | Constraining Lorentz violation with cosmology. |
| title_full | Constraining Lorentz violation with cosmology. |
| title_fullStr | Constraining Lorentz violation with cosmology. |
| title_full_unstemmed | Constraining Lorentz violation with cosmology. |
| title_short | Constraining Lorentz violation with cosmology. |
| title_sort | constraining lorentz violation with cosmology |
| work_keys_str_mv | AT zuntzj constraininglorentzviolationwithcosmology AT ferreirap constraininglorentzviolationwithcosmology AT zlosnikt constraininglorentzviolationwithcosmology |