D-brane gases and stabilization of extra dimensions in dilaton gravity

Savas Arapoglu, Ali Kaya

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


We consider a toy cosmological model with a gas of wrapped Dp-branes in 10-dimensional dilaton gravity compactified on a p-dimensional Ricci flat internal manifold. A consistent generalization of the low energy effective field equations in the presence of a conserved brane source coupled to dilaton is obtained. It is then shown that the compact dimensions are dynamically stabilized in string frame as a result of a balance between negative winding and positive momentum pressures. Curiously, when p=6, i.e., when the observed space is three-dimensional, the dilaton becomes a constant and stabilization in Einstein frame is also realized.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
Publication statusPublished - 9 Dec 2004
Externally publishedYes


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