Work

Logarithmic corrections to entropy of 3D cosmological solutions from celestial dual

Year: 2025

Type: article

Abstract: A bstract Recently a one-dimensional Schwarzian type theory was proposed as an effective dual theory of pure gravity in (2+1) dimensional asymptotically flat spacetimes [1]. This codimension-two ‘celestial’ dual captures the Bekenstein-Hawking entropy of bulk flat cosmologies in semiclassical limit. In this paper, we extend this analysis beyond semiclassical approximation and evaluate the one-loop exact partition function of this celestial dual theory. Our analysis results in novel nontrivial logarithmic corrections to the entropy of flat cosmological solutions. These log contributions appear from the one-loop path integral itself and are present in all choices of ensemble, in contrast to BTZ black holes, where the log corrections only show up in certain ensembles.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep04(2025)065

Authors: Arindam Bhattacharjee, Shruti Menon, Muktajyoti Saha

Institutions: University of Warsaw, Indian Institute of Science Education and Research, Bhopal, Tata Institute of Fundamental Research

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Narodowa Agencja Wymiany Akademickiej

OpenAlex ID: W4409327974