Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-05-10
Phys.Lett. B596 (2004) 221-228
Physics
High Energy Physics
High Energy Physics - Theory
Latex file. 15 pages. Version 2: Some confusion regarding the interpretation of deficit factor is clarified and some minor typ
Scientific paper
10.1016/j.physletb.2004.06.085
We describe multicharged black holes in terms of branes and antibranes together with multiple copies of gas of massless excitations. Assuming that energies of these copies of gas are all equal, we find that the entropy of the brane antibrane configuration agrees with that of the multicharged black hole in supergravity approximation, upto a factor X. We find that X = 1 for a suitable normalisation which admits a simple empirical interpretation that the available gas energy is all taken by one single gas which is, in a sense, a certain superposition of the multiple copies; and that the brane tensions are decreased by a factor of 4. This interpretation renders superfluous the assumption of equal energies, which is unnatural from a physical point of view.
Kalyana Rama S.
Siwach Sanjay
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