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Statut |
Confirmé |
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Série |
PT-IHES |
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Domaines |
hep-th |
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Date |
Mercredi 17 Décembre 2025 |
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Heure |
14:45 |
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Institut |
IHES |
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Salle |
Amphithéâtre Léon Motchane |
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Nom de l'orateur |
Zwikel |
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Prenom de l'orateur |
Céline |
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Addresse email de l'orateur |
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Institution de l'orateur |
Collège de France |
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Titre |
A Covariant Formulation of Logarithmic Supertranslations at Spatial Infinity |
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Résumé |
I will begin this talk by reviewing asymptotic symmetries. I will then introduce a new symplectic structure and conservative boundary conditions at spatial infinity that accommodate regular logarithmic translations and log-supertranslations. The associated charges are finite and conserved, and I will show that the asymptotic symmetry algebra is an enhancement of the BMS algebra and that it acquires a central extension between supertranslations and log-supertranslations, which together form a Heisenberg algebra. I will conclude with some interesting avenues that this work opens. |
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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