Not So Flat Metrics
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866916743375486976 |
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| author | Fraser-Taliente, Kit Harvey, Thomas R. Kim, Manki |
| author_facet | Fraser-Taliente, Kit Harvey, Thomas R. Kim, Manki |
| contents | In order to be in control of the $α'$ derivative expansion, geometric string compactifications are understood in the context of a large volume approximation. In this letter, we consider the reduction of these higher derivative terms, and propose an improved estimate on the large volume approximation using numerical Calabi-Yau metrics obtained via machine learning methods. Further to this, we consider the $α'^3$ corrections to numerical Calabi-Yau metrics in the context of IIB string theory. This correction represents one of several important contributions for realistic string compactifications -- alongside, for example, the backreaction of fluxes and local sources -- all of which have important consequences for string phenomenology. As a simple application of the corrected metric, we compute the change to the spectrum of the scalar Laplacian. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_00962 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Not So Flat Metrics Fraser-Taliente, Kit Harvey, Thomas R. Kim, Manki High Energy Physics - Theory In order to be in control of the $α'$ derivative expansion, geometric string compactifications are understood in the context of a large volume approximation. In this letter, we consider the reduction of these higher derivative terms, and propose an improved estimate on the large volume approximation using numerical Calabi-Yau metrics obtained via machine learning methods. Further to this, we consider the $α'^3$ corrections to numerical Calabi-Yau metrics in the context of IIB string theory. This correction represents one of several important contributions for realistic string compactifications -- alongside, for example, the backreaction of fluxes and local sources -- all of which have important consequences for string phenomenology. As a simple application of the corrected metric, we compute the change to the spectrum of the scalar Laplacian. |
| title | Not So Flat Metrics |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2411.00962 |