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arXiv · 2104.11996

Five-dimensional Einstein-Chern-Simons cosmology

Fernando Gómez·Samuel Lepe·Cristian Quinzacara·Patricio Salgado
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Abstract

We consider a five-dimensional Einstein-Chern-Simons action which is composed of a gravitational sector and a sector of matter, where the gravitational sector is given by a Chern-Simons gravity action instead of the Einstein-Hilbert action, and where the matter sector is given by a perfect fluid. The gravitational lagrangian is obtained gauging some Lie-algebras, which in turn, were obtained by S-expansion procedure of Anti-de Sitter and de Sitter algebras. On the cosmological plane, we discuss the field equations resulting from the Anti-de Sitter and de Sitter frameworks and we show analogies with four-dimensional cosmological schemes.

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Fernando Gómez, Samuel Lepe, Cristian Quinzacara, Patricio Salgado. 2021-04-24. Five-dimensional Einstein-Chern-Simons cosmology. https://doi.org/10.1103/physrevd.103.104058

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