Séminaire / Seminar GReCO |
| « De Sitter Momentum Space » |
|
Denis Werth |
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-- Blackboard presentation--
Although being relevant for the study of the early Universe, understanding quantum field theory in rigid de Sitter spacetime remains tremendously complicated. In this talk, I will show how one can construct a momentum space, called the Kontorovitch-Lebedev-Fourier space, from symmetries. This allows to define a notion of de Sitter energy, although not conserved, and a new integral transform that trivialises dynamics. |
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lundi 8 décembre 2025 - 11:00 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |