[Physics department seminar] Bridging high and low energies in search of quantum gravity

9 Jul 2025, 17:00
1h
Amphithéâtre 15 (Sorbonne Université)

Amphithéâtre 15

Sorbonne Université

4 Place Jussieu, Tour 15
Oral contribution

Speaker

Giulia Gubitosi (University of Napoli Federico II and INFN)

Description

The interplay between quantum mechanics and general relativity is one of the most profound open problems in fundamental physics. After decades of purely theoretical investigations, recent experimental advances turned the prospect of a phenomenological approach into a realistic possibility. On the one hand, searches for quantum gravity effects in astrophysical signals constitute nowadays an established field of fundamental research. On the other hand, table-top experiments with quantum systems are now advancing fast towards understanding the role of gravity in quantum systems and testing the possibility that gravity itself is quantized. Investigating the interface between high-energy quantum gravity and quantum aspects of gravity in the low-energy regime, using both theoretical and experimental tools, can provide complementary clues towards the construction of a phenomenologically viable theory of quantum gravity at all scales.

In this talk, I will give an overview of the state of the art and key open questions of this research programme and describe the related activities of the COST Action BridgeQG (Bridging high and low energies in search of quantum gravity).

Presentation materials

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