Approximate solution to the Callan-Giddings-Harvey-Strominger field equations for two-dimensional evaporating black holes

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.104009· OSTI ID:21509923

Ori, Amos ^[1]

---

1. Department of Physics, Technion-Israel Institute of Technology, Haifa 32000 (Israel)

Callan, Giddings, Harvey, and Strominger (CGHS) previously introduced a two-dimensional semiclassical model of gravity coupled to a dilaton and to matter fields. Their model yields a system of field equations which may describe the formation of a black hole in gravitational collapse as well as its subsequent evaporation. Here we present an approximate analytical solution to the semiclassical CGHS field equations. This solution is constructed using the recently introduced formalism of flux-conserving hyperbolic systems. We also explore the asymptotic behavior at the horizon of the evaporating black hole.

• OSTI ID: 21509923
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 10; Other Information: DOI: 10.1103/PhysRevD.82.104009; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANALYTICAL SOLUTION
ASYMPTOTIC SOLUTIONS
BLACK HOLES
EVAPORATION
FIELD EQUATIONS
GRAVITATION
GRAVITATIONAL COLLAPSE
SEMICLASSICAL APPROXIMATION
TWO-DIMENSIONAL CALCULATIONS
APPROXIMATIONS
CALCULATION METHODS
EQUATIONS
MATHEMATICAL SOLUTIONS
PHASE TRANSFORMATIONS