Quantum-corrected ultraextremal horizons and the validity of the WKB approximation in the massless limit

Journal Article · Sun Apr 15 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.084018· OSTI ID:21020387

Popov, Arkady A; Zaslavskii, O B ^[1]

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1. Department of Mathematics, Kazan State Pedagogical University, Mezhlauk 1 Street, Kazan 420021, (Russian Federation)

We consider quantum backreaction of the quantized scalar field with an arbitrary mass and curvature coupling on ultraextremal horizons. The problem is distinguished in that (in contrast to nonextremal or extremal black holes) the WKB approximation remains valid near r{sub +} (which is the radius of the horizon) even in the massless limit. We examine the behavior of the stress-energy tensor of the quantized field near r{sub +} and show that quantum-corrected objects under discussion do exist. In the limit of the large mass our results agree with previous ones known in literature.

• OSTI ID: 21020387
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 8; Other Information: DOI: 10.1103/PhysRevD.75.084018; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BLACK HOLES
COSMOLOGY
COUPLING
QUANTUM FIELD THEORY
REST MASS
SCALAR FIELDS
STRESSES
TENSORS
WKB APPROXIMATION