Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série IJCLAB-COSM
Domaines gr-qc
Date Lundi 27 Janvier 2025
Heure 14:00
Institut IJCLAB
Salle 210/1-114 - Salle des Séminaires (IJCLab)
Nom de l'orateur Del Porro
Prenom de l'orateur Francesco
Addresse email de l'orateur
Institution de l'orateur Niels Bohr Institute
Titre Hawking radiation without Lorentz invariance
Résumé Hawking radiation is one of the most outstanding discoveries about black holes. Well-established at the theoretical level, this effect predicts that the interplay between a quantum field and the underlying relativistic causal structure of a black hole geometry makes this object evaporate thermally. However, the investigation in the direction of a quantum theory of gravity makes us to rethink this second ingredient such as in Hořava gravity, where the violation of Local Lorentz invariance drastically changes the causal structure of spacetime. In this context, particles are endowed with modified dispersion relation and the notion of black hole is (remarkably) recovered in a completely different fashion. In this talk (mainly based on arXiv:2310.01472), I will show how black holes in a Lorentz violating scenario radiate and how the Hawking effect is affected by the violation of Lorentz invariance.
Numéro de preprint arXiv 2310.01472
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