Entropy and temperature of black 3-branes

Journal Article · Sun Sep 01 04:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.3915· OSTI ID:383425

Gubser, S S; Klebanov, I R; Peet, A W ^[1]

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1. Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544 (United States)

We consider slightly nonextremal black 3-branes of type IIB supergravity and show that their Bekenstein-Hawking entropy agrees, up to a mysterious factor, with an entropy derived by counting non-BPS excitations of the Dirichlet 3-brane. These excitations are described in terms of the statistical mechanics of a (3+1)-dimensional gas of massless open string states. This is essentially the classic problem of blackbody radiation. The blackbody temperature is related to the temperature of the Hawking radiation. We also construct a solution of type IIB supergravity describing a 3-brane with a finite density of longitudinal momentum. For extremal momentum-carrying 3-branes the horizon area vanishes. This is in agreement with the fact that the BPS entropy of the momentum-carrying Dirichlet 3-branes is not an extensive quantity. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Princeton University
• DOE Contract Number: FG02-91ER40671
• OSTI ID: 383425
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 6 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BLACK HOLES
ENTROPY
EXCITATION
FOUR-DIMENSIONAL CALCULATIONS
RADIATIONS
STRING MODELS
SUPERGRAVITY