Bouncing universe and non-BPS branes

被引：0
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作者：
Philipp Höffer v. Loewenfeld
Jin U Kang
Nicolas Moeller
Ivo Sachs
机构：
[1] Ludwig-Maximilians-Universität München,Arnold Sommerfeld Center for Theoretical Physics (ASC)
[2] Kim Il Sung University,Department of Physics
来源：
Journal of High Energy Physics | / 2010卷
关键词：
Tachyon Condensation; Cosmology of Theories beyond the SM; Spacetime Singularities;
D O I：
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摘要：
We describe string frame bouncing universe scenarios involving the creation and annihilation of a non-BPS D9-brane in type IIA superstring theory. We find several classes of solutions, in which the bounce is driven by the tachyon dynamics of the non-BPS brane. The metric and dilaton during the bounce are consistently described in terms of the lowest order effective action. The bounce solutions interpolate between contracting and expanding pre-big bang (or post-big bang) solutions. The singular behavior of our bounce solutions is the same as that of the pre-big bang (or post-big bang) solution.
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