تقرير
A class of ghost-free theories in symmetric teleparallel geometry
| العنوان: | A class of ghost-free theories in symmetric teleparallel geometry |
|---|---|
| المؤلفون: | Bello-Morales, Antonio G., Jiménez, Jose Beltrán, Cano, Alejandro Jiménez, Maroto, Antonio L., Koivisto, Tomi S. |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology, Astrophysics - Cosmology and Nongalactic Astrophysics |
| الوصف: | Theories formulated in the arena of teleparallel geometries are generically plagued by ghost-like instabilities or other pathologies that are ultimately caused by the breaking of some symmetries. In this work, we construct a class of ghost-free theories based on a symmetry under Transverse Diffeomorphisms that is naturally realised in symmetric teleparallelism. We explicitly show their equivalence to a family of theories with an extra scalar field plus a global degree of freedom and how Horndeski theories and healthy couplings to matter fields can be readily accommodated. Comment: 11 pages, no figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2406.19355 |
| رقم الأكسشن: | edsarx.2406.19355 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |