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Un-graviton corrections to the Schwarzschild black hole

Authors
Journal
Physics Letters B
0370-2693
Publisher
Elsevier
Publication Date
Volume
693
Issue
2
Identifiers
DOI: 10.1016/j.physletb.2010.07.058
Keywords
  • Theory
Disciplines
  • Mathematics
  • Physics

Abstract

Abstract We introduce an effective action smoothly extending the standard Einstein–Hilbert action to include un-gravity effects. The improved field equations are solved for the un-graviton corrected Schwarzschild geometry reproducing the Mureika result. This is an important test to confirm the original “guess” of the form of the un-Schwarzschild metric. Instead of working in the weak field approximation and “dressing” the Newtonian potential with un-gravitons, we solve the “effective Einstein equations” including all order un-gravity effects. An unexpected “bonus” of accounting un-gravity effects is the fractalisation of the event horizon. In the un-gravity dominated regime the event horizon thermodynamically behaves as fractal surface of dimensionality twice the scale dimension dU.

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