Accelerated expansion from a nonminimal gravitational coupling to matter

被引：101
作者：
Bertolami, O. [1 ]
Frazao, P.
Paramos, J.
机构：
[1] Univ Tecn Lisboa, Dept Fis, Inst Super Tecn, P-1049001 Lisbon, Portugal
来源：
PHYSICAL REVIEW D | 2010年 / 81卷 / 10期
关键词：
PROBE WMAP OBSERVATIONS; DARK ENERGY; UNIVERSE; CURVATURE; DECELERATION; UNIFICATION; MAXIMA-1; MODEL; FLAT; MAPS;
D O I：
10.1103/PhysRevD.81.104046
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
It is shown that a nonminimal coupling between the scalar curvature and the matter Lagrangian density may account for the accelerated expansion of the Universe and provide, through mimicking, for a viable unification of dark energy and dark matter. An analytical exploration is first performed, and a numerical study is then used to validate the obtained results. The encountered scenario allows for a better grasp of the proposed mechanism, and sets up the discussion for improvements that can lead to a complete agreement with the observational data.
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页数：10
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