Brane gravity in 4D from Chern-Simons gravity theory

Autor:	Díaz, R., Gómez, F., Pinilla, M., Salgado, P.
Rok vydání:	2020
Předmět:	General Relativity and Quantum Cosmology
Zdroj:	The European Physical Journal C volume 80, Article number: 546 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1140/epjc/s10052-020-8104-6
Popis:	We evaluate a 5-dimensional Randall Sundrum type metric in the Lagrangian of the Einstein-Chern-Simons gravity, and then we derive an action and its corresponding field equations, for a 4-dimensional brane embedded in the 5-dimensional space-time of the theory, which in the limit l--0 leads to the 4-dimensional general relativity with cosmological constant. An interpretation of the h*a matter field present in the Einstein-Chern-Simons gravity action is given. As an application, we find some Friedmann-Lemaitre-Robertson-Walker cosmological solutions that exhibit accelerated behavior. Comment: arXiv admin note: text overlap with arXiv:2012.10578
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2012.11593 Zobrazit plný text záznamu View this record from Arxiv