19–21 Feb 2019
"Sapienza" University, Phys. Dept. Marconi
Europe/Rome timezone

Corpuscular gravity: from cosmology to black holes

20 Feb 2019, 12:06
17m
Aula Amaldi ("Sapienza" University, Phys. Dept. Marconi)

Aula Amaldi

"Sapienza" University, Phys. Dept. Marconi

Rome
talk Beyond Einstein's Gravity Beyond Einstein's Gravity

Speaker

Roberto Casadio (BO)

Description

Corpuscular gravity has originated from the observation that a black hole can be viewed as a Bose-Einstein condensate at the critical point, with a large occupation number of (soft off-shell) gravitons and no central singularity. This innovative approach moves away from the semi-classical picture of quantum field theory on curved backgrounds and considers self-gravitating systems as truly quantum. We shall introduce the idea that the gravitational state of the whole Universe can be described as a Cosmological Dark Energy Condensate behaving like a quasi-de Sitter Universe and then discuss the crucial role of regular baryonic matter and the way it interacts with the cosmological condensate.

Summary

Corpuscular gravity has originated from the observation that a black hole can be viewed as a Bose-Einstein condensate at the critical point, with a large occupation number of (soft off-shell) gravitons and no central singularity. This innovative approach moves away from the semi-classical picture of quantum field theory on curved backgrounds and considers self-gravitating systems as truly quantum. We shall introduce the idea that the gravitational state of the whole Universe can be described as a Cosmological Dark Energy Condensate behaving like a quasi-de Sitter Universe and then discuss the crucial role of regular baryonic matter and the way it interacts with the cosmological condensate.

Primary author

Roberto Casadio (BO)

Co-authors

Andrea Giusti (BO) Andrea Giugno (Arnold Sommerfeld Center, Fakultät für Physik, Ludwig-Maximilians-Universität, Munich) Michele Lenzi (B)

Presentation materials