Fracton gravity from spacetime dipole symmetry

Alessio Caddeo (U de Oviedo)

Apr 17. 2024, 09:30 — 10:00


In this talk, I will present a fracton gravity gauge theory based on a covariant version of the monopole-dipole-momentum algebra. In the presence of a suitable background field, the theory includes a massive two-form and a massless symmetric two-index tensor. The latter transforms only under longitudinal diffeomorphisms, making the massless sector similar to linearized gravity, but with additional modes of lower spin. I will show that the theory can be consistently coupled to a curved background metric and discuss its possible interaction terms with itself and with matter. In addition, I will present a map between solutions of linearized gravity in Kerr-Schild form and solutions of fracton gravity coupled to matter.

Further Information
Venue:
ESI Schrödinger and Boltzmann Lecture Hall
Associated Event:
Carrollian Physics and Holography (Thematic Programme)
Organizer(s):
Andrea Campoleoni (U of Mons)
Laura Donnay (SISSA, Trieste)
Stefan Fredenhagen (U of Vienna)
Daniel Grumiller (TU Vienna)