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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2019
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| Online-Zugang: | https://arxiv.org/abs/1910.10499 |
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| _version_ | 1866909103462285312 |
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| author | Guarnizo, Alejandro Almeida, Juan P. Beltrán Valenzuela-Toledo, César A. |
| author_facet | Guarnizo, Alejandro Almeida, Juan P. Beltrán Valenzuela-Toledo, César A. |
| contents | We consider a model based on $p-$form kinetic Lagrangians in the context of dark energy. The Lagrangian of the model is built with kinetic terms of the field strength for each $p$-form coupled to a scalar field $ϕ$ through a kinetic function. We assume that this scalar field is responsible for the present accelerated expansion of the Universe. Since we are interested in cosmological applications, we specialize the analysis to a 4-dimensional case, using an anisotropic space-time. By studying the dynamical equations, we investigate the evolution of the dark energy density parameter, the effective equation of state and the shear induced by the anisotropic configuration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1910_10499 |
| institution | arXiv |
| publishDate | 2019 |
| record_format | arxiv |
| spellingShingle | $p$-form quintessence: exploring dark energy of $p-$forms coupled to a scalar field Guarnizo, Alejandro Almeida, Juan P. Beltrán Valenzuela-Toledo, César A. General Relativity and Quantum Cosmology High Energy Physics - Theory We consider a model based on $p-$form kinetic Lagrangians in the context of dark energy. The Lagrangian of the model is built with kinetic terms of the field strength for each $p$-form coupled to a scalar field $ϕ$ through a kinetic function. We assume that this scalar field is responsible for the present accelerated expansion of the Universe. Since we are interested in cosmological applications, we specialize the analysis to a 4-dimensional case, using an anisotropic space-time. By studying the dynamical equations, we investigate the evolution of the dark energy density parameter, the effective equation of state and the shear induced by the anisotropic configuration. |
| title | $p$-form quintessence: exploring dark energy of $p-$forms coupled to a scalar field |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/1910.10499 |