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arXiv · hep-th/9701137

A Non-Supersymmetric Open String Theory and S-Duality

Oren Bergman·Matthias R. Gaberdiel
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Abstract

A non-supersymmetric ten-dimensional open string theory is constructed as an orbifold of type I string theory, and as an orientifold of the bosonic type B theory. It is purely bosonic, and cancellation of massless tadpoles requires the gauge group to be SO(32)xSO(32). The spectrum of the theory contains a closed string tachyon, and open string tachyons in the (32,32) multiplet. The D-branes of this theory are analyzed, and it is found that the massless excitations of one of the 1-branes coincide with the world-sheet degrees of freedom of the D=26 bosonic string theory compactified on the SO(32) lattice. This suggests that the two theories are related by S-duality.

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Oren Bergman, Matthias R. Gaberdiel. 1997-05-18. A Non-Supersymmetric Open String Theory and S-Duality. https://doi.org/10.1016/s0550-3213(97)00309-x

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