Q-Math Seminar
Disformal transformations: bringing order to modified gravity
Speaker: Jordi Gaset (CUNEF)Date: Tuesday, 18 February 2025 - 13:00Place: Room 2.2.D08, Universidad Carlos III de Madrid
Online: https://eu.bbcollab.com/guest/22f7877a774148a3aee3e398a4a86380 (active on request)
Abstract:
Recently it has been discovered that a generalization of conformal transformations, called disformal, relate large sections of the modified gravity landscape. We will present a novel approach to disformal transformation using Lie groups. Even if two models are related by a disformal transformation, the transfer of properties is not obvious because these transformations mix positions and velocities. We will show how to prove equivalence between two models in general situations.
