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| HAL : in2p3-00353276, version 1 |
| arXiv : 0901.1314 |
| Code Bibliographique ADS : 2009PhRvD..79h4003D |
| DOI : 10.1103/PhysRevD.79.084003 |
| Fiche détaillée |  Récupérer au format |
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| Physical Review D 79 (2009) 084003 |
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| Covariant Galileon |
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| C. Deffayet1G. Esposito-FareseA. Vikman |
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| (2009) |
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| We consider the recently introduced "galileon" field in a dynamical spacetime. When the galileon is assumed to be minimally coupled to the metric, we underline that both field equations of the galileon and the metric involve up to third-order derivatives. We show that a unique nonminimal coupling of the galileon to curvature eliminates all higher derivatives in all field equations, hence yielding second-order equations, without any extra propagating degree of freedom. The resulting theory breaks the generalized "Galilean" invariance of the original model. |
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| 1 : | APC - AstroParticule et Cosmologie |
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| APC - THEORIE |
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| Thème(s) | : | Physique/Astrophysique/Cosmologie et astrophysique extra-galactique Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique Physique/Relativité Générale et Cosmologie Quantique Physique/Physique des Hautes Energies - Théorie |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/0901.1314 |
| in2p3-00353276, version 1 | |
| http://hal.in2p3.fr/in2p3-00353276 | |
| oai:hal.in2p3.fr:in2p3-00353276 | |
| Contributeur : Simone Lantz | |
| Soumis le : Jeudi 15 Janvier 2009, 11:33:46 | |
| Dernière modification le : Lundi 25 Juin 2012, 14:34:22 | |
