A quasi-thick codimension 2 braneworld

Sugumi Kanno, Jiro Soda

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

We study a codimension 2 braneworld in the Einstein-Gauss-Bonnet gravity. We carefully examine the structure of possible singularities in the system which characterize the braneworld through matching conditions. We find that the thickness of the brane can be incorporated as a distributional source, which we dub quasi-thickness. On the basis of our formalism, we analyse the linearized gravity and show that the conventional Einstein gravity can be recovered on the brane. In the nonlinear regime, however, we find corrections due to the thickness and the bulk geometry. We also point out the possibility that the thickness plays the role of dark energy/dark matter in the universe.

Original languageEnglish
Pages (from-to)11-24
Number of pages14
JournalJournal of Cosmology and Astroparticle Physics
Issue number7
DOIs
Publication statusPublished - Jul 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics

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