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“School of Physics”

Paper IPM / P / 6807

School of Physics
Title:	T-Duality and Noncommutative DBI Action
Author(s):	D. Kamani
Status:	Published
Journal:	Mod. Phys. Lett. A
No.:	36
Vol.:	17
Year:	2002
Pages:	237-243
Supported by:	IPM

Abstract:

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 ~Φ 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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