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Statut |
Confirmé |
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Série |
RENC-THEO |
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Domaines |
hep-th |
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Date |
Jeudi 18 Juin 2020 |
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Heure |
11:00 |
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Institut |
IHP |
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Salle |
https://zoom.us/j/92580134167 |
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Nom de l'orateur |
Stieberger |
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Prenom de l'orateur |
Stephan |
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Addresse email de l'orateur |
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Institution de l'orateur |
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Titre |
Symmetries of celestial amplitudes |
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Résumé |
The celestial sphere is the target space for the proposal of flat space holography
in which four-dimensional physics is encoded in two-dimensional celestial
conformal field theory (CCFT).
After giving some motivations we introduce the concepts and properties of physics
on the celestial sphere.
We shall discuss symmetries and properties of celestial amplitudes. After
introducing the concept of soft theorems on the celestial sphere we shall give an
explicit field realization of the operators generating superrotations and
supertranslations. Finally we construct the full extended BMS Algebra of CCFT. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
- Paris.pdf (395602 bytes)
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