دورية أكاديمية
Cosmological singularities in $$f(T,\phi ) $$ f ( T , ϕ ) gravity
| العنوان: | Cosmological singularities in $$f(T,\phi ) $$ f ( T , ϕ ) gravity |
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| المؤلفون: | Oem Trivedi, Maxim Khlopov, Jackson Levi Said, Rafael Nunes |
| المصدر: | European Physical Journal C: Particles and Fields, Vol 83, Iss 11, Pp 1-12 (2023) |
| بيانات النشر: | SpringerOpen, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Astrophysics LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| مصطلحات موضوعية: | Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| الوصف: | Abstract The pursuit of understanding the mysteries surrounding dark energy has sparked significant interest within the field of cosmology. While conventional approaches, such as the cosmological constant, have been extensively explored, alternative theories incorporating scalar field-based models and modified gravity have emerged as intriguing avenues. Among these, teleparallel theories of gravity, specifically the $$f(T,\phi )$$ f ( T , ϕ ) formulation, have gained prominence as a means to comprehend dark energy within the framework of teleparallelism. In this study, we investigate two well-studied models of teleparallel dark energy and examine the presence of cosmological singularities within these scenarios. Using the Goriely–Hyde procedure, we examine the dynamical systems governing the cosmological equations of these models. Our analysis reveals that both models exhibit Type IV singularities, but only for a limited range of initial conditions. These results could indicate a potential edge for teleparallel cosmological models over their other modified gravity counterparts, as the models we examine seem to be only allowing for weak singularities that too under non general conditions. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1434-6052 |
| Relation: | https://doaj.org/toc/1434-6052 |
| DOI: | 10.1140/epjc/s10052-023-12204-4 |
| URL الوصول: | https://doaj.org/article/69b8aa3d9e1a48fc81fdfd134b0b86de |
| رقم الأكسشن: | edsdoj.69b8aa3d9e1a48fc81fdfd134b0b86de |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 14346052 |
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| DOI: | 10.1140/epjc/s10052-023-12204-4 |