Black holes and massive remnants.

@article{Giddings1992BlackHA,
  title={Black holes and massive remnants.},
  author={Giddings},
  journal={Physical review. D, Particles and fields},
  year={1992},
  volume={46 4},
  pages={
          1347-1352
        }
}
  • Giddings
  • Published 21 March 1992
  • Physics
  • Physical review. D, Particles and fields
This paper examines the conundrum faced when one attempts to understand the dynamics of black hole formation and evaporation without abandoning unitary evolution. Previous efforts to resolve this puzzle assume that information escapes in corrections to the Hawking process, that an arbitrarily large amount of information is transmitted by a Planckian energy or contained in a Planck-sized remnant, or that the information is lost to another universe. Each of these possibilities has serious… 
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References

SHOWING 1-10 OF 46 REFERENCES
Are horned particles the end point of Hawking evaporation?
TLDR
It is shown that the generic solution of the model of CGHS is singular, and modifications of their model are proposed which may allow the scenario to be realized in a consistent manner.
Evaporation of two-dimensional black holes.
  • Hawking
  • Physics
    Physical review letters
  • 1992
TLDR
Results indicate that there is a naked singularity in black-hole evaporation, or (more likely) that the semiclassical approximation breaks down.
Evanescent black holes.
TLDR
A renormalizable theory of quantum gravity coupled to a dilaton and conformal matter in two spacetime dimensions is analyzed and suggests that the collapsing matter radiates away all of its energy before an event horizon has a chance to form, and black holes disappear from the quantum-mechanical spectrum.
Dynamics of extremal black holes.
TLDR
It is argued that the quantum-mechanical possibility of scattering off of extremal black holes implies the potential existence of additional quantum numbers, referred to as quantum whiskers,'' characterizing the black hole.
Quantum Black Holes
Following Mukhanov’s pioneering work, we propose the hypothesis that a black hole spontaneously emits radiation in quanta of entropy of one bit . It then follows, using standard thermodynamical
The black hole interpretation of string theory
CLASSICAL AND QUANTUM GRAVITY EFFECTS FROM PLANCKIAN ENERGY SUPERSTRING COLLISIONS
We argue that superstring collisions at Planckian energies and small deflection angles are calculable through an evaluation and resummation of string loops in flat space-time. This leads to a
Quantum mechanics of gravitational collapse
A toy model of gravitational collapse in General Relativity is studied. It consists of a spherically symmetric thin shell of dust with a fixed rest mass. The configuration space is the half-axis and
Particle creation by black holes
AbstractIn the classical theory black holes can only absorb and not emit particles. However it is shown that quantum mechanical effects cause black holes to create and emit particles as if they were
Black holes in cutoff gravity.
  • Morgan
  • Physics
    Physical review. D, Particles and fields
  • 1991
TLDR
The core of a black hole is studied in a simple model for quantum gravity in which quantum effects are represented by an upper cutoff on the curvature, and an infalling observer ends up in an exponentially expanding de Sitter-like core.
...
...