Non-Supersymmetric Orbifolds
arXiv:hep-th/0202057 · doi:10.1016/S0550-3213(02)00336-X
Abstract
We study compact non-supersymmetric Z_N orbifolds in various dimensions. We compute the spectrum of several tachyonic type II and heterotic examples and partially classify tachyon-free heterotic models. We also discuss the relation to compactification on K3 and Calabi-Yau manifolds.
26 pages, Latex, v3: eqs. 3 and 4 corrected, version to be published in Nucl. Phys. B
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- Generalised universality of gauge thresholds in heterotic vacua with and without supersymmetry
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