Cosmological constraints from UV/IR mixing
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908829616177152 |
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| author | Cribiori, Niccolò Tonioni, Flavio |
| author_facet | Cribiori, Niccolò Tonioni, Flavio |
| contents | Holography and entropy bounds suggest that the ultraviolet (UV) and infrared (IR) cutoffs of gravitational effective theories are related to one another as a form of UV/IR mixing. Motivated by this, we derive a bound on the allowed scalar field range in theories with cosmic horizons. We show how this bound challenges several inflationary scenarios, such as $α$-attractors and modular-invariant inflation. Besides, we find a relation between the number of extra spatial dimensions and the tensor-to-scalar ratio. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_02738 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Cosmological constraints from UV/IR mixing Cribiori, Niccolò Tonioni, Flavio High Energy Physics - Theory Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology Holography and entropy bounds suggest that the ultraviolet (UV) and infrared (IR) cutoffs of gravitational effective theories are related to one another as a form of UV/IR mixing. Motivated by this, we derive a bound on the allowed scalar field range in theories with cosmic horizons. We show how this bound challenges several inflationary scenarios, such as $α$-attractors and modular-invariant inflation. Besides, we find a relation between the number of extra spatial dimensions and the tensor-to-scalar ratio. |
| title | Cosmological constraints from UV/IR mixing |
| topic | High Energy Physics - Theory Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2507.02738 |