Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série P^3
Domaines astro-ph,hep-ph,hep-th
Date Mardi 22 Juin 2021
Heure 16:00
Institut IHP
Salle Seminar via zoom https://ijclab.zoom.us/j/94900481972
Nom de l'orateur Mccullough
Prenom de l'orateur Matthew
Addresse email de l'orateur
Institution de l'orateur CERN and Cambridge U.
Titre Self-Organised Localisation
Résumé We describe a new phenomenon in quantum cosmology: self-organised localisation. When the fundamental parameters of a theory are functions of a scalar field subject to large fluctuations during inflation, quantum phase transitions can act as dynamical attractors. As a result, the theory parameters are probabilistically localised around the critical value and the Universe finds itself at the edge of a phase transition. We illustrate how self-organised localisation could account for the observed near-criticality of the Higgs self-coupling, the naturalness of the Higgs mass, or the smallness of the cosmological constant.
Numéro de preprint arXiv
Commentaires
Fichiers attachés

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

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