A Generally Covariant Model of Spacetime as a 4-Brane in 4+1 Flat Dimensions
Autor: | Ergen, Mert, Arık, Metin |
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Rok vydání: | 2024 |
Předmět: | |
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 |
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