Résumé / Abstract Seminaire_GReCO

"Vacuum Energy Sequestering "

D. Stefanyszyn
School of Physics and Astronomy, University of Nottingham (Nottingham, Royaume-Uni)

In this talk I will discuss the main aspects of the cosmological constant problem and present a mechanism that sequesters vacuum energy generated by matter fields from gravity. I will emphasise the global nature of the problem and present a theory that only affects the trace of the gravitational field equations in the extreme infra-red. I will argue that the sequestering is effective regardless of the order of the loop expansion to which the vacuum energy is calculated thereby eliminating the need to repeatedly fine tune a classical counter term.

lundi 2 novembre 2015 - 11:00
Salle des séminaires Évry Schatzman,
Institut d'Astrophysique de Paris

Page web du séminaire / Seminar's webpage