Information is Not Lost in the Evaporation of 2-dimensional Black Holes
Jan, 2008
5 pages
Published in:
- Phys.Rev.Lett. 100 (2008) 211302
e-Print:
- 0801.1811 [gr-qc]
Report number:
- IGC-08-01-02
View in:
Citations per year
Abstract: (arXiv)
We analyze Hawking evaporation of the Callen-Giddings-Harvey-Strominger (CGHS) black holes from a quantum geometry perspective and show that information is not lost, primarily because the quantum space-time is sufficiently larger than the classical. Using suitable approximations to extract physics from quantum space-times we establish that: i)future null infinity of the quantum space-time is sufficiently long for the the past vacuum to evolve to a pure state in the future; ii) this state has a finite norm in the future Fock space; and iii) all the information comes out at future infinity; there are no remnants.Note:
- 4 pages, 2 figures
- 04.70.Dy
- 89.70.Cf
- 04.62.+v
- 04.60.Pp
- black hole: evaporation
- dimension: 2
- information theory
- quantum geometry
- quantum space
- singularity
References(16)
Figures(2)