Information Loss and Anomalous Scattering

Abstract

The approach of 't Hooft to the puzzles of black hole evaporation can be applied to a simpler system with analogous features. The system is $1+1$ dimensional electrodynamics in a linear dilaton background. Analogues of black holes, Hawking radiation and evaporation exist in this system. In perturbation theory there appears to be an information paradox but this gets resolved in the full quantum theory and there exists an exact $S$-matrix, which is fully unitary and information conserving. 't Hooft's method gives the leading terms in a systematic approximation to the exact result.

18 pages, 3 figures (postscript files available soon on request), (earlier version got corrupted by mail system)

References in corpus (10)

• Evanescent Black Holes
• Black Holes and Massive Remnants
• Are Horned Particles the Climax of Hawking Evaporation?
• Liouville Models of Black Hole Evaporation
• Quantum Emission from Two-Dimensional Black Holes
• Evaporation of Two Dimensional Black Holes
• Dynamics of Extremal Black Holes
• Fadeev-Popov Ghosts and 1+1 Dimensional Black Hole Evaporation
• Quantum Black Holes
• S-Wave Scattering of Charged Fermions by a Magnetic Black Hole

Cited by in corpus (14)

• The Endpoint of Hawking Evaporation
• Quantum Black Hole Evaporation
• Classical and Quantum Production of Cornucopions At Energies Below $10^{18}$ GeV
• Nonsingular Lagrangians for Two Dimensional Black Holes
• Semi-classical geometry of charged black holes
• Global geometry of two-dimensional charged black holes
• Back-Reaction and Complementarity in 1+1 Dilaton Gravity
• Fermion Scattering off Dilatonic Black Holes
• Closed Universes With Black Holes But No Event Horizons As a Solution to the Black Hole Information Problem
• Role of Faddeevian anomaly in the s-wave scattering of chiral fermion off dilaton black holes towards preservation of information
• Does Chiral Fermion Coupled to a Background Dilaton Field Preserve Information?
• Unparticle may be a Remedy to the Information Loss in the Scattering of Fermion off Dilaton Black-hole
• Equilibrium Two-Dimensional Dilatonic Spacetimes
• On the indistinguishability of Chiral QED with parameter-free Faddeevian anomaly and QED under a chiral constraint