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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Acceso en línea: | https://arxiv.org/abs/2602.07113 |
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| _version_ | 1866917427005095936 |
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| author | Larotonda, Vittorio Montero, Miguel Tartaglia, Michelangelo |
| author_facet | Larotonda, Vittorio Montero, Miguel Tartaglia, Michelangelo |
| contents | We present a systematic study of non-supersymmetric type II toroidal asymmetric orbifolds with vanishing vacuum energy at one-loop in string perturbation theory. These are engineered through the conservation of a supercharge-like operator in each individual sector in the orbifold sum, despite the overall explicit breaking of spacetime SUSY. We provide a full classification of such orbifolds with finite Abelian point-group, which can only admit $\mathbb{Z}_k \times \mathbb{Z}_k$ point group with $k=2,3,4$. We present detailed constructions, alongside other examples with non-Abelian point group. For some of these models, it is possible that this cancellation persists at higher loops. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_07113 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Asymmetric orbifolds with vanishing one-loop vacuum energy Larotonda, Vittorio Montero, Miguel Tartaglia, Michelangelo High Energy Physics - Theory We present a systematic study of non-supersymmetric type II toroidal asymmetric orbifolds with vanishing vacuum energy at one-loop in string perturbation theory. These are engineered through the conservation of a supercharge-like operator in each individual sector in the orbifold sum, despite the overall explicit breaking of spacetime SUSY. We provide a full classification of such orbifolds with finite Abelian point-group, which can only admit $\mathbb{Z}_k \times \mathbb{Z}_k$ point group with $k=2,3,4$. We present detailed constructions, alongside other examples with non-Abelian point group. For some of these models, it is possible that this cancellation persists at higher loops. |
| title | Asymmetric orbifolds with vanishing one-loop vacuum energy |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2602.07113 |