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SÉMINAIRE DU GRECO
"Vacuum Energy Sequestering " |
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D. Stefanyszyn |
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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. |
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lundi 2 novembre 2015 - 11:00 Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris |
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