Dynamical analysis for a vector-like dark energy

被引：27
作者：
Landim, Ricardo C. G. [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, Rua Matao,Travessa R 187,Cidade Univ, BR-05508090 Sao Paulo, SP, Brazil
来源：
EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 09期
基金：
巴西圣保罗研究基金会;
关键词：
COSMOLOGY;
D O I：
10.1140/epjc/s10052-016-4328-x
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
In this paper we perform a dynamical analysis for a vector field as a candidate for the dark energy, in the presence of a barotropic fluid. The vector is one component of the so-called cosmic triad, which is a set of three identical copies of an abelian field pointing mutually in orthogonal directions. In order to generalize the analysis, we also assumed the interaction between dark energy and the barotropic fluid, with a phenomenological coupling. Both matter and dark energy eras can be successfully described by the critical points, indicating that the dynamical system theory is a viable tool to analyze asymptotic states of such cosmological models.
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页数：6
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