Accelerated expansion from a nonminimal gravitational coupling to matter

被引：102

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.

引用

页数：10

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