A Generally Covariant Model of Spacetime as a 4-Brane in 4+1 Flat Dimensions

Autor:	Ergen, Mert, Arık, Metin
Rok vydání:	2024
Předmět:	General Relativity and Quantum Cosmology High Energy Physics - Theory
Druh dokumentu:	Working Paper
Popis:	We construct a simple model of a closed FLRW spacetime by starting from a flat five dimensional scalar field space with a quartic potential. The action contains no curvature terms. The spacetime metric is uniquely determined from the dynamical equations of the metric tensor. An SO(4) invariant ansatz for the scalar fields is shown to lead to a linearly expanding universe provided that the cosmological constant is negative.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2410.12505 Zobrazit plný text záznamu View this record from Arxiv