Tubular D-branes in Salam-Sezgin Model

Details Tubular D-branes in Salam-Sezgin Model Tubular D-branes in Salam-Sezgin Model

2004-04-21

arxiv.org/abs/hep-th/0404163v2

JHEP 0405 (2004) 020

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, 1 figure, LaTeX2e, minor changes, version appeared in JHEP

Scientific paper

10.1088/1126-6708/2004/05/020

We study DBI-type effective theory of an unstable D3-brane in the background manifold R^{1,1} x M_2 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 M_2=S^2, the solution is embedded in the background geometry R^{1,3} x S^2 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.

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