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Living on the Edge: Quantum Black Hole Physics from Event Horizon
07/20
2023
Colloquium
- Title Living on the Edge: Quantum Black Hole Physics from Event Horizon
- Speaker Francesco Sannino (Quantum Theory Center (QTC) at Danish-IAS)
- Date 16:30 Jul. 20, 2023
- Venue Room 322, ITP North Building
Abstract
Quantum gravity theories predict deformations of black hole solutions relative to their classical counterparts. A model-independent approach was recently advocated that uses metric deformations parametrised in terms of physical quantities, such as the proper distance. By assuming a minimal degree of regularity at the horizon, we provide explicit expansions of the metric function. This allows us to compute important thermodynamical quantities of the black hole, such as the Hawking temperature and entropy, for which we provide model-independent expressions. Moreover, imposing the absence of curvature singularities at the event horizon leads to non-trivial consistency conditions for the metric deformations themselves, which we find to be violated by some models in the literature.
About the Speaker:
Francesco Sannino is the Director of the Quantum Theory Center, the Founder of the Centre for Cosmology and Particle Physics Phenomenology (CP3-Origins) at SDU. He is also one of the Founders of the Danish IAS and Professor of Theoretical Physics at the Federico II University in Italy. He has been recognised with numerous awards and prestigious research grants, including the Excellence Team Leader Grant of the European Commission, the Elite Researcher Prize of the Danish Ministry of Science and the Danish National Research Foundation Centre of Excellence grant. Francesco is also a member of the Royal Danish Academy and Finish Academy of Science and Letters.