Braneworld mimetic f(R) gravity

被引：8
|
作者：
Nozari, Kourosh [1 ]
Sadeghnezhad, Naser
机构：
[1] Univ Mazandaran, Fac Basic Sci, Dept Phys, POB 47416-95447, Babol Sar, Iran
来源：
INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2019年 / 16卷 / 03期
关键词：
Mimetic gravity; braneworld scenario; f(R) gravity; cosmology; COSMOLOGICAL CONSEQUENCES; DARK ENERGY; DYNAMICS; FIELD;
D O I：
10.1142/S0219887819500427
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Following our recent work on braneworld mimetic gravity, in this paper, we study an extension of braneworld mimetic gravity to the case that the gravitational sector on the brane is modified in the spirit of f(R) theories. We assume the physical 5D bulk metric in the Randall-Sundrum II braneworld scenario consists of a 5D scalar field (which mimics the dark sectors on the brane) and an auxiliary 5D metric. We find the 5D Einstein's field equations and the 5D equation of motion of the bulk scalar field in this setup. By using the Gauss-Codazzi equations, we obtain the induced Einstein's field equations on the brane. Finally, by adopting the FRW background, we find the Friedmann equation on the brane in this f(R) mimetic braneworld setup.
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收藏
页数：11
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