N=2 Heterotic Superstring and its Dual Theory in Five Dimensions

Details N=2 Heterotic Superstring and its Dual Theory in Five Dimensions N=2 Heterotic Superstring and its Dual Theory in Five Dimensions

1995-11-15

arxiv.org/abs/hep-th/9511108v1

Nucl.Phys.B460:489-505,1996

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, LaTeX

Scientific paper

10.1016/0550-3213(95)00659-1

We study quantum effects in five dimensions in heterotic superstring theory compactified on K_3 x S_1 and analyze the conjecture that its dual effective theory is eleven-dimensional supergravity compactified on a Calabi-Yau threefold. This theory is also equivalent to type II superstring theory compactified on the same Calabi-Yau manifold, in an appropriate large volume limit. In this limit the conifold singularity disappears and is replaced by a singularity associated to enhanced gauge symmetries, as naively expected from the heterotic description. Furthermore, we exhibit the existence of additional massless states which appear in the strong coupling regime of the heterotic theory and are related to a different type of singular points on Calabi-Yau threefolds.

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