Nonsingular Schwarzschild-de Sitter Black Hole

Abstract

We combine notions of a maximal curvature scale in nature with that of a minimal curvature scale to construct a non-singular Schwarzschild-de Sitter black hole. We present an exact solution within the context of two-dimensional dilaton gravity. For a range of parameters the solution approaches Schwarzschild-de Sitter at large values of the radial coordinate, asymptotically approaching a de Sitter metric with constant minimal curvature, while approaching a maximal constant curvature smooth spacetime as the radial coordinate approaches zero. The spacetime is geodesically complete and generically has both a black hole horizon and a cosmological horizon.

11 pages, 3 figures; matches published version

References in corpus (3)

• Nonsingular Black Hole
• Resolving Cosmological Singularities
• Towards a Stringy Resolution of the Cosmological Singularity

Cited by in corpus (5)

• The classical double copy of non-singular black holes
• Two-dimensional black holes in the limiting curvature theory of gravity
• Eternal Universes
• Implications of the singularity theorem for the size of a nonsingular universe
• The fate of Schwarzschild--de Sitter black holes: nonequilibrium evaporation