Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.08448 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866915848060403712 |
|---|---|
| author | Feleppa, Fabiano de Graaf, Welmoed Marit Brax, Philippe Lambiase, Gaetano |
| author_facet | Feleppa, Fabiano de Graaf, Welmoed Marit Brax, Philippe Lambiase, Gaetano |
| contents | We test screened dark energy with near-Earth, space-based measurements. In a post-Newtonian framework, we compute leading corrections to geodetic precession (Gravity Probe B), LAGEOS-2 pericenter advance, and the Sagnac delay in a prospective orbital configuration, yielding bounds on chameleon, symmetron, and dilaton models. LAGEOS-2 sets the strongest Earth-orbit limits on symmetron and dilaton, while a Sagnac setup at the projected sensitivity of state-of-the-art space clocks gives the tightest chameleon constraint. These results show that low-density, space-based experiments sensitively probe screened dark energy and exclude previously allowed parameter space. Notably, at nuclear-clock precision $\mathcal{O}\big(10^{-19}\big)$, a Sagnac test would exclude the entire chameleon parameter space considered. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_08448 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bounds on screened dark energy from near-Earth space-based measurements Feleppa, Fabiano de Graaf, Welmoed Marit Brax, Philippe Lambiase, Gaetano General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology We test screened dark energy with near-Earth, space-based measurements. In a post-Newtonian framework, we compute leading corrections to geodetic precession (Gravity Probe B), LAGEOS-2 pericenter advance, and the Sagnac delay in a prospective orbital configuration, yielding bounds on chameleon, symmetron, and dilaton models. LAGEOS-2 sets the strongest Earth-orbit limits on symmetron and dilaton, while a Sagnac setup at the projected sensitivity of state-of-the-art space clocks gives the tightest chameleon constraint. These results show that low-density, space-based experiments sensitively probe screened dark energy and exclude previously allowed parameter space. Notably, at nuclear-clock precision $\mathcal{O}\big(10^{-19}\big)$, a Sagnac test would exclude the entire chameleon parameter space considered. |
| title | Bounds on screened dark energy from near-Earth space-based measurements |
| topic | General Relativity and Quantum Cosmology Cosmology and Nongalactic Astrophysics High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2511.08448 |