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arXiv · 2406.00185

New Non-Supersymmetric Tachyon-Free Strings

Zihni Kaan Baykara·Houri-Christina Tarazi·Cumrun Vafa
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Abstract

In four decades of string theory research, only a handful of non-supersymmetric tachyon-free strings with only one neutral scalar at tree level were found. We construct new such non-supersymmetric tachyon-free string theories using asymmetric orbifolds that serve as the lower-dimensional counterparts to the $O(16) \times O(16)$ string in 4d, 6d, and 8d, each featuring only one neutral scalar at tree level, chiral matter and positive leading order cosmological constant. The 4d construction uses a quasicrystalline orbifold.

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Zihni Kaan Baykara, Houri-Christina Tarazi, Cumrun Vafa. 2024-05-31. New Non-Supersymmetric Tachyon-Free Strings. https://arxiv.org/abs/2406.00185

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