Un-graviton corrections to the Schwarzschild black hole

Patricio Gaete, José A. Helaÿel-Neto, Euro Spallucci

Research output: Contribution to journalArticle

18 Citations (Scopus)


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. © 2010 Elsevier B.V.
Original languageEnglish
Pages (from-to)155-158
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 1 Sep 2010
Externally publishedYes

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