• Rapid Communication

Are there hyperentropic objects?

Jacob D. Bekenstein
Phys. Rev. D 70, 121502(R) – Published 21 December 2004

Abstract

By treating the Hawking radiation as a system in thermal equilibrium, Marolf and Sorkin have argued that hyperentropic objects (those violating the entropy bounds) would be emitted profusely with the radiation, thus opening a loophole in black hole based arguments for such entropy bounds. We demonstrate, on kinetic grounds, that hyperentropic objects could be formed only extremely slowly and so would be rare in the Hawking radiance, thus contributing negligibly to its entropy. The arguments based on the generalized second law of thermodynamics then rule out weakly self-gravitating hyperentropic objects and a class of strongly self-gravitating ones.

  • Received 10 October 2004

DOI:https://doi.org/10.1103/PhysRevD.70.121502

©2004 American Physical Society

Authors & Affiliations

Jacob D. Bekenstein*

  • Racah Institute of Physics, Hebrew University of Jerusalem, Givat Ram, Jerusalem 91904, Israel, and Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts 02138, USA

  • *Electronic address: bekenste@vms.huji.ac.il URL: http://www.phys.huji.ac.il/~bekenste/

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 70, Iss. 12 — 15 December 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review D

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×