Bound of Noncommutativity Parameter Based on Black Hole Entropy

Abstract

We study the bound of the noncommutativity parameter in the noncommutative Schwarzschild black hole which is a solution of the noncommutative ISO(3,1) Poincare gauge group. The statistical entropy satisfying the area law in the brick wall method yields a cutoff relation which depends on the noncommutativity parameter. Requiring both the cutoff parameter and the noncommutativity parameter to be real, the noncommutativity parameter can be shown to be bounded as $\Theta > 8.4\ times 10^{-2}l_{p}$.Comment: LaTeX 7 pages, references added, minor correction