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| Format: | Preprint |
| Veröffentlicht: |
2025
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| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2512.25047 |
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| _version_ | 1866909979179483136 |
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| author | Melville, Scott |
| author_facet | Melville, Scott |
| contents | This talk gives a short introduction to the ``UV/EFT correspondence", which uses scattering amplitudes to relate the Effective Field Theory (EFT) coefficients probed by low-energy measurements to properties of the underlying high-energy (UV) completion. This includes recent ``positivity bounds" on EFT coefficients, which are the low-energy signatures of causality and unitarity in the UV. To illustrate their phenomenological impact, I apply these bounds to a simple EFT for dark energy and compare with recent cosmological observations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_25047 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Amplitude constraints on dark energy Melville, Scott General Relativity and Quantum Cosmology This talk gives a short introduction to the ``UV/EFT correspondence", which uses scattering amplitudes to relate the Effective Field Theory (EFT) coefficients probed by low-energy measurements to properties of the underlying high-energy (UV) completion. This includes recent ``positivity bounds" on EFT coefficients, which are the low-energy signatures of causality and unitarity in the UV. To illustrate their phenomenological impact, I apply these bounds to a simple EFT for dark energy and compare with recent cosmological observations. |
| title | Amplitude constraints on dark energy |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2512.25047 |