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Díaz, R.; Gómez, F.; Pinilla, M.; Salgado, P.
The European physical journal. C, Particles and fields, 06/2020, Letnik: 80, Številka: 6Journal Article
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.
