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arXiv · hep-th/9810116

U-Duality of Born-Infeld on the Noncommutative Two-Torus

C. Hofman·E. Verlinde
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Abstract

We discuss Born-Infeld on the noncommutative two-torus as a description of compactified string theory. We show that the resulting theory, including the fluctuations, is manifestly invariant under the T-duality group SO(2,2;Z). The BPS mass even has a full SL(3,Z)xSL(2,Z) U-duality symmetry. The direct identification of the noncommutative parameter θwith the B-field modulus however seems to be problematic at finite volume.

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C. Hofman, E. Verlinde. 1998-10-29. U-Duality of Born-Infeld on the Noncommutative Two-Torus. https://doi.org/10.1088/1126-6708%2F1998%2F12%2F010

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