Status: Bibliographieeintrag
Standort: ---
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| Online-Ressource |
Verfasst von: | Sawicki, Ignacy [VerfasserIn]  |
| Motta, Mariele [VerfasserIn]  |
| Amendola, Luca [VerfasserIn]  |
Titel: | Non-standard gravitational waves imply gravitational slip |
Titelzusatz: | on the difficulty of partially hiding new gravitational degrees of freedom |
Verf.angabe: | Ignacy Sawicki, Ippocratis D. Saltas, Mariele Motta, Luca Amendola, and Martin Kunz |
Fussnoten: | Gesehen am 09.11.2017 |
Titel Quelle: | Enthalten in: De.arxiv.org |
Jahr Quelle: | 2017 |
Band/Heft Quelle: | (2017) Artikel-Nummer 1612.02002, 16 Seiten |
Abstract: | In many generalized models of gravity, perfect fluids in cosmology give rise to gravitational slip. Simultaneously, in very broad classes of such models, the propagation of gravitational waves is altered. We investigate the extent to which there is a one-to-one relationship between these two properties in three classes of models with one extra degree of freedom: scalar (Horndeski and beyond), vector (Einstein-Aether) and tensor (bimetric). We prove that in bimetric gravity and Einstein-Aether, it is impossible to dynamically hide the gravitational slip on all scales whenever the propagation of gravitational waves is modified. Horndeski models are much more flexible, but it is nonetheless only possible to hide gravitational slip dynamically when the action for perturbations is tuned to evolve in time toward a divergent kinetic term. These results provide an explicit, theoretical argument for the interpretation of future observations if they disfavoured the presence of gravitational slip. |
URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Kostenfrei: Verlag: http://arxiv.org/abs/1612.02002 |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1565188349 |
Verknüpfungen: | → Sammelwerk |
Non-standard gravitational waves imply gravitational slip / Sawicki, Ignacy [VerfasserIn] (Online-Ressource)
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