Math @ Duke

Publications [#243289] of Paul S. Aspinwall
Papers Published
 Aspinwall, PS; Plesser, MR, Tduality can fail,
The Journal of High Energy Physics, vol. 3 no. 8
(1999),
pp. XI18, ISSN 10298479 [hepth/9905036]
(last updated on 2018/05/22)
Abstract: We show that Tduality can be broken by nonperturbative effects in string coupling. The Tduality in question is that of the 2torus when the heterotic string is compactified on K3xT2. This case is compared carefully to a situation where Tduality appears to work. A holonomy argument is presented to show that Tdualities (and general Udualities) should only be expected for large amounts of supersymmetry. This breaking of R ↔ 1/R symmetry raises some interesting questions in string theory which we discuss. Finally we discuss how the classical modular group of a 2torus appears to be broken too.


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