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2014

Four-dimensional black holes with unusual horizons

Klemm, Dietmar

Understand

We show that in presence of a cosmological constant or, more generally, of a scalar potential, there can exist actually more possibilities for the horizon geometry of a four-dimensional black hole than the hitherto known spherical, hyperbolic or flat cases.

  • In particular, there are black holes whose event horizons are noncompact manifolds with finite volume, which are topologically spheres with two punctures.
  • We give concrete examples of such black holes in Einstein-Maxwell-AdS gravity and discuss their thermodynamics.
  • These exotic solutions, that seem to have been overlooked in the existing literature, may provide interesting testgrounds to address questions related to black hole physics or holography.

Built on

  • M. M. Caldarelli, R. Emparan and M. J. Rodríguez, JHEP 0811

    Original

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  • S. W. Hawking, Commun. Math. Phys. 25

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  • S. W. Hawking, in ‘Black Holes, Les Houches Lectures’ (1972), edited by C. DeWitt and B. S. DeWitt (North Holland, Amsterdam, 1972)

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  • S. W. Hawking and G. F. R. Ellis, Cambridge University Press, Cambridge, 1973

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    Earlier work this paper cites.

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