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BLACK HOLE GEOMETRIES IN NONCOMMUTATIVE STRING THEORY
2006
International Journal of Modern Physics A
We obtain a generalized Schwarzschild (GS-) and a generalized Reissner-Nordstrom (GRN-) black hole geometries in (3+1)-dimensions, in a noncommutative string theory. In particular, we consider an effective theory of gravity on a curved D_3-brane in presence of an electromagnetic (EM-) field. Two different length scales, inherent in its noncommutative counter-part, are exploited to obtain a theory of effective gravity coupled to an U(1) noncommutative gauge theory to all orders in Θ. It is shown
doi:10.1142/s0217751x06033179
fatcat:s7oe6swzzvf5bbsvv6shhg7oaa