T-duality and Noncommutative DBI Action

Details T-duality and Noncommutative DBI Action T-duality and Noncommutative DBI Action

2001-07-21

arxiv.org/abs/hep-th/0107184v2

Mod.Phys.Lett. A17 (2002) 237-244

Physics

High Energy Physics

High Energy Physics - Theory

8 pages, Latex, no figure, Some formulas have been canceled

Scientific paper

10.1142/S021773230200645X

In this article we study the noncommutative description of the DBI Lagrangian and its T-dual counterpart. We restrict the freedoms of the noncommutativity parameters of these Lagrangians. Therefore the noncommutativity parameter, the effective metric, the effective coupling constant of the string and the extra modulus ${\tilde \Phi}$ of the effective T-dual theory, can be expressed in terms of the closed string variables $g$, $B$, $g_s$ and the noncommutativity parameter of the effective theory of open string.

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