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Journal of High Energy Physics

, 2019:14 | Cite as

Stringy black hole interiors

  • Amit Giveon
  • Nissan ItzhakiEmail author
Open Access
Regular Article - Theoretical Physics
  • 18 Downloads

Abstract

It is well known that non-perturbative α corrections to the SL(2, ℝ)/U(1) cigar geometry are described via a condensation of a Sine-Liouville operator that schematically can be written as W+ + W, where W± describe a string with winding number ±1. This condensation leads to interesting effects in the cigar geometry that take place already at the classical level in string theory. Condensation of the analytically continued Sine-Liouville operator in the Lorentzian SL(2, ℝ)/U(1) black hole is problematic. Here, we propose that in the black hole case, the non-perturbative α corrections are described in terms of an operator that can be viewed as the analytic continuation of the fusion of W+ and W. We show that this operator does not suffer from the same problem as the analytically continued Sine-Liouville operator and argue that it describes folded strings that fill the entire black hole and, in a sense, replace the black hole interior. We estimate the folded strings radiation, and show that they radiate at the Hawking temperature.

Keywords

2D Gravity Black Holes Black Holes in String Theory 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  1. 1.Racah Institute of PhysicsThe Hebrew UniversityJerusalemIsrael
  2. 2.Physics DepartmentTel-Aviv UniversityRamat-AvivIsrael

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