title: Almost certain escape from black holes in final state projection models.
abstract: Recent models of the black-hole final state suggest that quantum information can escape from a black hole by a process akin to teleportation. These models rely on a controversial process called final-state projection. This Letter discusses the self-consistency of the final-state projection hypothesis and investigates escape from black holes for arbitrary final states and for generic interactions between matter and Hawking radiation. Quantum information escapes with fidelity approximately = (8/3pi)2: only half a bit of quantum information is lost on average, independent of the number of bits that escape from the hole.
authors.affiliation: MIT Mechanical Engineering, Cambridge, Massachusetts 02139, USA. slloyd@mit.edu
authors.forename: Seth
authors.initials: S
authors.lastname: Lloyd