Next Article in Journal
Complexity through Recombination: From Chemistry to Biology
Next Article in Special Issue
Entropy Production during Asymptotically Safe Inflation
Previous Article in Journal
Information Storage in Liquids with Ordered Molecular Assemblies
Previous Article in Special Issue
Entanglement Entropy of AdS Black Holes
Entropy 2011, 13(1), 11-16; doi:10.3390/e13010011
Article

Corrections to Bekenstein-Hawking Entropy— Quantum or not-so Quantum?

Received: 22 November 2010; in revised form: 20 December 2010 / Accepted: 22 December 2010 / Published: 24 December 2010
(This article belongs to the Special Issue Entropy in Quantum Gravity and Quantum Cosmology)
Download PDF [100 KB, uploaded 24 December 2010]
Abstract: Hawking radiation and Bekenstein-Hawking entropy are the two robust predictions of a yet unknown quantum theory of gravity. Any theory which fails to reproduce these predictions is certainly incorrect. While several approaches lead to Bekenstein-Hawking entropy, they all lead to different sub-leading corrections. In this article, we ask a question that is relevant for any approach: Using simple techniques, can we know whether an approach contains quantum or semi-classical degrees of freedom? Using naive dimensional analysis, we show that the semi-classical black-hole entropy has the same dimensional dependence as the gravity action. Among others, this provides a plausible explanation for the connection between Einstein’s equations and thermodynamic equation of state, and that the quantum corrections should have a different scaling behavior.
Keywords: black-holes; entanglement; Bekenstein-Hawking black-holes; entanglement; Bekenstein-Hawking
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Shankaranarayanan, S. Corrections to Bekenstein-Hawking Entropy— Quantum or not-so Quantum? Entropy 2011, 13, 11-16.

AMA Style

Shankaranarayanan S. Corrections to Bekenstein-Hawking Entropy— Quantum or not-so Quantum? Entropy. 2011; 13(1):11-16.

Chicago/Turabian Style

Shankaranarayanan, S. 2011. "Corrections to Bekenstein-Hawking Entropy— Quantum or not-so Quantum?" Entropy 13, no. 1: 11-16.


Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert