TY - JOUR

T1 - A puncture in the Euclidean black hole

AU - Brustein, Ram

AU - Giveon, Amit

AU - Itzhaki, Nissan

AU - Zigdon, Yoav

N1 - Publisher Copyright:
© 2022, The Author(s).

PY - 2022/4

Y1 - 2022/4

N2 - We consider the backreaction of the winding condensate on the cigar background. We focus on the case of the SL(2, ℝ)k/U(1) cigar associated with, e.g., the near-horizon limit of k NS5 black-branes. We solve the equations of motion numerically in the large k limit as a function of the amplitude, A, of the winding mode at infinity. We find that there is a critical amplitude, Ac = exp(−γ/2), that admits a critical solution. In string theory, the exact SL(2, ℝ)k/U(1) cigar CFT fixes completely the winding amplitude, As, at infinity. We find that in the large k limit there is an exact agreement, Ac = As. The critical solution is a cigar with a puncture at its tip; consequently, the black-hole entropy is carried entirely by the winding condensate. We argue that, in the Lorentzian case, the information escapes the black hole through this puncture.

AB - We consider the backreaction of the winding condensate on the cigar background. We focus on the case of the SL(2, ℝ)k/U(1) cigar associated with, e.g., the near-horizon limit of k NS5 black-branes. We solve the equations of motion numerically in the large k limit as a function of the amplitude, A, of the winding mode at infinity. We find that there is a critical amplitude, Ac = exp(−γ/2), that admits a critical solution. In string theory, the exact SL(2, ℝ)k/U(1) cigar CFT fixes completely the winding amplitude, As, at infinity. We find that in the large k limit there is an exact agreement, Ac = As. The critical solution is a cigar with a puncture at its tip; consequently, the black-hole entropy is carried entirely by the winding condensate. We argue that, in the Lorentzian case, the information escapes the black hole through this puncture.

KW - Black Holes in String Theory

KW - Conformal Field Models in String Theory

UR - http://www.scopus.com/inward/record.url?scp=85127943192&partnerID=8YFLogxK

U2 - 10.1007/JHEP04(2022)021

DO - 10.1007/JHEP04(2022)021

M3 - מאמר

AN - SCOPUS:85127943192

VL - 2022

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 4

M1 - 21

ER -