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arXiv · 2412.16057

One-loop corrections to near extremal Kerr thermodynamics from semiclassical Virasoro blocks

Paolo Arnaudo·Giulio Bonelli·Alessandro Tanzini
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Abstract

We propose a method to perform an exact calculation of one-loop quantum corrections to black hole entropy in terms of Virasoro semiclassical blocks. We analyse in detail four-dimensional Kerr black hole and show that in the near-extremal limit a branch of long-lived modes arises. We prove that the contribution of these modes accounts for a $(s-1/2)\log T_{\text{Hawking}}$ correction to the entropy for massless particles of spin $s=1,2$. We show that in the full calculation performed in the exact Kerr background the leading contribution actually is sourced by the near-horizon region only, and as such has a universal validity for any asymptotic behavior at infinity.

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Paolo Arnaudo, Giulio Bonelli, Alessandro Tanzini. 2024-12-20. One-loop corrections to near extremal Kerr thermodynamics from semiclassical Virasoro blocks. https://arxiv.org/abs/2412.16057

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