Speaker: Robertus Potting (Algarve U., CENTRA IST)
Title: Massive gravity and Lorentz symmetry
A short review of the ghost-free massive gravity theory of de Rham, Gabadadze and Tolley is presented. We then focus on the static extrema and saddle points of the potential and study their Lorentz properties. Solutions preserving Lorentz invariance and ones breaking four of the six Lorentz generators are constructed, both stable and unstable ones. Finally, we discuss the propagation of gravitational waves in this theory.
Room: Sala de Reuniões e Seminários (2nd Floor of physics building)