A silence black hole: Hawking radiation at the Hagedorn temperature

Abstract

We compute semi-classically the Hawking emission for different types of black hole in type II string theory. In particular we analyze the thermal transition between NS5 branes and Little String Theory, finding compelling evidence for information recovering. We find that once the near horizon limit is taken the emission of a full family of models is exactly thermal even if back-reaction is taken into account. Consequently these theories are non-unitary and can not convey any information about the black hole internal states. It is argue that this behaviour matches the string theory expectations. We suggest a plausible reason for the vanishing of the jet-quenching parameter in such theories.

arXiv comment18 pages, harvmac

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Cited by in corpus (13)

• D3-D7 Quark-Gluon Plasmas
• D3-D7 Quark-Gluon Plasmas at Finite Baryon Density
• Comments on the String dual to N=1 SQCD
• Phenomenology of Production and Decay of Spinning Extra-Dimensional Black Holes at Hadron Colliders
• Screening effects on meson masses from holography
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• Unquenched flavor in the gauge/gravity correspondence
• Stability of linear dilaton black holes at the Hagedorn temperature
• Little String Theories on Curved Manifolds
• Some considerations about NS5 and LST Hawking radiation
• A note on the string spectrum at the Hagedorn temperature
• Emission of fermions in little string theory
• Back-reaction as a quantum correction