From Fundamental Strings to Small Black Holes

Abstract

We give evidence in favour of a string/black hole transition in the case of BPS fundamental string states of the Heterotic string. Our analysis goes beyond the counting of degrees of freedom and considers the evolution of dynamical quantities in the process. As the coupling increases, the string states decrease their size up to the string scale when a small black hole is formed. We compute the absorption cross section for several fields in both the black hole and the perturbative string phases. At zero frequency, these cross sections can be seen as order parameters for the transition. In particular, for the scalars fixed at the horizon the cross section evolves to zero when the black hole is formed.

36 pages, 4 figures, argument about minimally coupled scalar absorption cross section clarified

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Cited by in corpus (14)

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• Extremal black holes in D=4 Gauss-Bonnet gravity
• New Regimes of Stringy (Holographic) Pomeron and High Multiplicity pp and pA Collisions
• alpha'-exact entropies for BPS and non-BPS extremal dyonic black holes in heterotic string theory from ten-dimensional supersymmetry
• Extremal dyonic black holes in D=4 Gauss-Bonnet gravity
• String Vertex Operators and Cosmic Strings
• Self-interacting fundamental strings and black holes
• Scattering of spherically symmetric d-dimensional alpha'-corrected black holes in string theory
• The chaotic emergence of thermalization in highly excited string decays
• Pair Production of small Black Holes in Heterotic String Theories
• Duality and Decay of Macroscopic F-Strings
• Chaotic and Thermal Aspects in the Highly Excited String S-Matrix
• Curvature-corrected dilatonic black holes and black hole -- string transition
• Interplay of Reggeon and photon in pA collisions