DOAJ Open Access 2022

Brans–Dicke Unimodular Gravity

Alexandre M. R. Almeida Júlio C. Fabris Mahamadou Hamani Daouda Richard Kerner Hermano Velten +1 lainnya

Abstrak

We propose a unimodular version of the Brans–Dicke theory designed with a constrained Lagrangian formulation. The resulting field equations are traceless. The vacuum solutions in the cosmological background reproduce the corresponding solutions of the usual Brans–Dicke theory but with a cosmological constant term. A perturbative analysis of the scalar modes is performed and stable and unstable configurations appear, in contrast with the Brans–Dicke case for which only stable configurations occur. On the other hand, tensorial modes in this theory remain the same as in the traditional Brans–Dicke theory.

Topik & Kata Kunci

Elementary particle physics

Penulis (6)

Alexandre M. R. Almeida

Júlio C. Fabris

Mahamadou Hamani Daouda

Richard Kerner

Hermano Velten

Willian S. Hipólito-Ricaldi

Format Sitasi

APA MLA BibTeX

Almeida, A.M.R., Fabris, J.C., Daouda, M.H., Kerner, R., Velten, H., Hipólito-Ricaldi, W.S. (2022). Brans–Dicke Unimodular Gravity. https://doi.org/10.3390/universe8080429

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.3390/universe8080429
Akses: Open Access ✓