Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-03-14
Phys.Lett. B599 (2004) 313-318
Physics
High Energy Physics
High Energy Physics - Theory
9 pages
Scientific paper
10.1016/j.physletb.2004.08.047
We study the tachyon condensation on the D-brane--antiD-brane system from the supergravity point of view. The non-supersymmetric supergravity solutions with symmetry ISO($p,1$) $\times$ SO($9-p$) are known to be characterized by three parameters. By interpreting this solution as coincident $N$ D$p$-branes and ${\bar N}$ ${\bar {\rm D}}p$-branes we give, for the first time, an explicit representation of the three parameters of supergravity solutions in terms of $N, \bar N$ and the tachyon vev. We demonstrate that the solution and the corresponding ADM mass capture all the required properties and give a correct description of the tachyon condensation advocated by Sen on the D-brane--antiD-brane system.
Lu Jian-Xin
Roy Subinit
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