Fixing EFT equations with a reservoir model
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866908834506735616 |
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| author | Besharat, A. Lehner, L. Radkovski, J. |
| author_facet | Besharat, A. Lehner, L. Radkovski, J. |
| contents | Effective Field Theories with higher derivatives often yield equations of motion which define ill-posed problems. We present a method for enhancing control on such theories by coupling them to a field living in one extra dimension. The resulting action principle helps to define a well-posed problem introducing a mechanism to control UV behavior. Physically this is achieved by dissipating the energy in the short-wavelength modes into the extra dimension. We examine the resulting dynamics and compare it to alternative proposals for studying such theories in the non-linear regime. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2602_13431 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Fixing EFT equations with a reservoir model Besharat, A. Lehner, L. Radkovski, J. High Energy Physics - Theory General Relativity and Quantum Cosmology Effective Field Theories with higher derivatives often yield equations of motion which define ill-posed problems. We present a method for enhancing control on such theories by coupling them to a field living in one extra dimension. The resulting action principle helps to define a well-posed problem introducing a mechanism to control UV behavior. Physically this is achieved by dissipating the energy in the short-wavelength modes into the extra dimension. We examine the resulting dynamics and compare it to alternative proposals for studying such theories in the non-linear regime. |
| title | Fixing EFT equations with a reservoir model |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2602.13431 |