Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-th
Date Mercredi 15 Novembre 2017
Heure 14:15
Institut IPHT
Salle Salle Claude Itzykson, Bât. 774
Nom de l'orateur Sebastian Garcia-Saenz
Prenom de l'orateur
Addresse email de l'orateur
Institution de l'orateur Institut d'Astrophysique de Paris
Titre Phonons in holographic superfluids and solids
Résumé After reviewing the gravitational dual of superfluids in the context of AdS/CFT, I will describe an analytical method to derive the low-energy spectrum of the boundary theory. The result confirms that, at zero temperature, the effective theory consists of a longitudinal phonon with the correct speed of sound. I will next move on to consider the EFT of solids and use it to motivate the construction of a holographic dual. Here too we are able to derive the correct low-energy effective theory of the phonons in a conformally invariant solid. Lastly we obtain some numerical solutions including backreaction and calculate the free energy, finding evidence that the system ``melts'' into a black hole as the temperature is raised, which we interpret as a solid-to-liquid phase transition on the field theory side.
Numéro de preprint arXiv
Fichiers attachés

Pour obtenir l' affiche de ce séminaire : [ Postscript | PDF ]

[ Annonces ]    [ Abonnements ]    [ Archive ]    [ Aide ]    [ ]
[ English version ]