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Statut |
Confirmé |
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Série |
IPHT-HEP |
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Domaines |
hep-ph |
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Date |
Mardi 8 Octobre 2024 |
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Heure |
14:00 |
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Institut |
IPHT |
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Salle |
Salle Claude Itzykson, Bât. 774 |
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Nom de l'orateur |
Sylvain Fichet |
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Prenom de l'orateur |
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Addresse email de l'orateur |
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Institution de l'orateur |
Federal University of ABC |
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Titre |
Dilaton Gravity and Holography from the Bottom-Up |
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Résumé |
I will present recent developments in the holographic aspects of non-AdS spacetimes, from the perspective of GR and EFT. My focus will be on a simple model that contains both AdS and linear dilaton spacetimes as particular cases. I will show that the holography of this model leads to a non-conformal fluid with a very simple equation of state. Notably, the linear dilaton features a pressureless fluid that may be identified as dark matter in a cosmological braneworld model. I will also explore the interplay of the gravitational spectrum and of holographic entanglement entropy with bulk singularities. This will lead us to a connection between confinement (detected via various criteria) and the nature of the bulk singularities. Finally, I will further discuss some surprising aspects of the linear dilaton background that warrant more investigation. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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