High curvature extensions of General Relativity a la Born-Infeld

por Dr. Lavinia Heisenberg (Institute for Theoretical Studies, ETH Zurich (Switzerland))

lunes 30 nov. 2015 12:30 → 13:30 Europe/Madrid

4-4-4426 - Seminari Física Teòrica (Campus Burjassot)

In order to regularize the energy of point-like charged particles, Born and Infeld introduced a modification of the Maxwell lagrangian that naturally imposes an upper bound on electromagnetic fields. This approach was later taken by Deser and Gibbons to propose an analogous modification for gravity. I will review these ideas and discuss a scenario where inflation could be supported by a set of massive particles within the context of these theories.