Semiclassical ultraextremal horizons

Abstract

We examine backreaction of quantum massive fields on multiply-degenerate (ultraextremal) horizons. It is shown that, under influence of the quantum backreaction, the horizon of such a kind moves to a new position, near which the metric does not change its asymptotics, so the ultraextremal black holes and cosmological spacetimes do exist as self-consistent solutions of the semiclassical field equations.

References added

References in corpus (3)

• Nariai, Bertotti-Robinson and anti-Nariai solutions in higher dimensions
• Reissner-Nordstrom-de Sitter black hole, planar coordinates and dS/CFT
• Exactly solvable models in 2D semiclassical dilaton gravity and extremal black holes

Cited by in corpus (7)

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• Some general properties of the renormalized stress-energy tensor for static quantum states on (n+1)-dimensional spherically symmetric black holes
• Truly naked spherically-symmetric and distorted black holes
• Vacuum polarization of the quantized massive scalar field in Reissner-Nordström spacetime
• Quantum-corrected ultraextremal horizons and validity of WKB in massless limit