Work

Exponential Corrections to Black Hole Entropy

Year: 2020

Type: article

Abstract: Using the quasilocal properties alone we show that the area spectrum of a black hole horizon must be discrete, independent of any specific quantum theory of gravity. The area spectrum is found to be half-integer spaced with values $8\ensuremath{\pi}\ensuremath{\gamma}{\ensuremath{\ell}}_{p}^{2}j$ where $j\ensuremath{\in}\mathbb{N}/2$. We argue that if microstate counting is carried out for quantum states residing on the horizon only, correction of $\mathrm{exp}(\ensuremath{-}\mathcal{A}/4{\ensuremath{\ell}}_{p}^{2})$ over the Bekenstein-Hawking area law must arise in black hole entropy.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.125.041302

Authors: Ayan Chatterjee, Amit Ghosh

Institutions: Central University of Himachal Pradesh, Saha Institute of Nuclear Physics, Homi Bhabha National Institute

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Department of Science and Technology, Ministry of Science and Technology, India, Department of Atomic Energy, Government of India, Science and Engineering Research Board, Board of Research in Nuclear Sciences

Awards: G6160989398, G8387653711