• DOI:10.1103/PhysRevD.54.3915
• Corpus ID: 11397525

Entropy and temperature of black 3-branes.

@article{Gubser1996EntropyAT,
  title={Entropy and temperature of black 3-branes.},
  author={Gubser and Klebanov and Peet},
  journal={Physical review. D, Particles and fields},
  year={1996},
  volume={54 6},
  pages={
          3915-3919
        }
}

• Gubser, Klebanov, Peet
• Published 25 February 1996
• Physics
• Physical review. D, Particles and fields

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.}