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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 11 Décembre 2018 |
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Heure |
16:00 |
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Institut |
IPHT |
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Salle |
Salle Claude Itzykson, Bât. 774 |
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Nom de l'orateur |
David Stefanyszyn |
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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 |
VSI, University of Groningen |
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Titre |
Effective field theories with non-linearly realised symmetries: from flat space scattering amplitudes to cosmology |
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Résumé |
In this talk I will outline work I have done over the past 12 months or so on non-linearly realised symmetries in effective field theories both on Lorentz invariant and Lorentz violating backgrounds. I will first discuss the general formulism of the coset construction and inverse Higgs constraints as a tool to construct non-linear realisations of spontaneously broken symmetries. I will then explain how this provides a useful classification of scalar quantum field theories in flat space followed by discussing how it provides a useful tool for building inflationary models. I will also present a general classification of non-linearly realised symmetries within the effective field theory framework of single clock cosmologies. I will make the talk very pedagogical. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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