English

Un-graviton corrections to the Schwarzschild black hole

High Energy Physics - Phenomenology 2010-12-09 v2 General Relativity and Quantum Cosmology High Energy Physics - Theory

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 d_U.

Keywords

Cite

@article{arxiv.1005.0234,
  title  = {Un-graviton corrections to the Schwarzschild black hole},
  author = {Patricio Gaete and José A. Helayel-Neto and Euro Spallucci},
  journal= {arXiv preprint arXiv:1005.0234},
  year   = {2010}
}

Comments

11 pages; 2 Figures, final version accepted for publication in PLB. Comments added about the perihelion of Mercury; expanded final discusion; new references