Target space duality and stringy black holes

Apr, 1991
18 pages
Published in:
  • Mod.Phys.Lett.A 6 (1991) 2843-2854
Report number:
  • LBL-30671

Citations per year

1991199920072015202305101520
Abstract: (WSP)
Target space duality symmetry of the SL(2,ℝ)/U(1) background leads to stringy properties of the black hole. For a Euclidean space-time the semi-infinite cigar is transformed to an infinite funnel. High and low temperatures of the black hole are related. For a Lorentzian space-time, duality interchanges regions I and V in the Kruskal–Szekeres coordinates, that is, duality exchanges the horizon with the singularity. As a result, a signal can be sent out of the singularity. Such a signal is associated with the string winding modes. The mass of the black hole and the consequence of a tachyon disturbance are discussed.
  • string model
  • field theory: conformal
  • dimension: 2
  • effective action
  • background field
  • black hole: temperature
  • black hole: mass
  • mass: black hole
  • space-time: duality
  • postulated particle: tachyon