Quantum gravity as an EFT, black hole thermodynamics and an excursion into the UV

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• Basem El-Menoufi (University of Sussex)
• Friday 26 October 2018, 16:00-17:00
• MR19 (Potter Room, Pavilion B), CMS.

If you have a question about this talk, please contact Francesco Coradeschi.

Albeit great deal of work, we are still far from ‘the’ quantum theory of gravity. Yet, the past few decades have seen a shift in the way the problem is viewed. It is by now clear that even though Quantum General Relativity is perturbatively non-renormalizable, it is a well-behaved low-energy effective theory. In this talk, I will discuss the EFT treatment of quantum gravity and some recent progress in “infrared quantum gravity”. As an application, I will focus on computing the partition function of Euclidean quantum gravity utilizing the EFT techniques. I will re-investigate the question about the thermal stability of Schwarzschild black hole, when one takes into account the quantum corrections due to massless fluctuations. Moreover, the effective theory can tell us a great deal about the UV as well. I will show how one can obtain constraints on the UV completion of quantum gravity by a careful study of the logarithmic correction to Bekenstein-Hawking entropy.

The slides of the presentation can be found here

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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