Tubular D-branes in Salam-Sezgin model

Chanju Kim, Yoonbai Kim, O. Kab Kwon

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We study DBI-type effective theory of an unstable D3-brane in the background manifold ℝ1,1 × M2 where M 2 is an arbitrary two-dimensional manifold. We obtain an exact tubular D2-brane solution of arbitrary cross sectional shape by employing 1/ cosh tachyon potential. When M2 = S2, the solution is embedded in the background geometry ℝ1,3 × S2 of Salam-Sezgin model. This tachyon potential shows a unique property that an array of tachyon soliton solutions has a fixed period which is independent of integration constants of the equations of motion. The thin BPS limit of the configurations leads to supertubes of arbitrary cross sectional shapes.

Original languageEnglish
Pages (from-to)417-429
Number of pages13
JournalJournal of High Energy Physics
Issue number5
StatePublished - 1 May 2004


  • Solitons Monopoles and Instantons
  • Tachyon Condensation


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