Thawing in a coupled quintessence model

被引：10
|
作者：
Honardoost, M. [1 ]
Sadjadi, H. Mohseni [2 ]
Sepangi, H. R. [1 ]
机构：
[1] Shahid Beheshti Univ, Dept Phys, GC, Tehran 19839, Iran
[2] Univ Tehran, Dept Phys, POB 14395-547, Tehran 1439955961, Iran
来源：
GENERAL RELATIVITY AND GRAVITATION | 2016年 / 48卷 / 10期
关键词：
Cosmology; Thawing model; Dark energy; Dark matter; Coupled quintessence; COSMOLOGICAL CONSTANT; COINCIDENCE;
D O I：
10.1007/s10714-016-2125-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the thawing model in the framework of coupled quintessence model. The effective potential has Z(2) symmetry which is broken spontaneously when the dark matter density becomes less than a critical value leading the quintessence equation of state parameter to deviate from -1. Conditions required for this procedure are obtained and analytical solution for the equation of state parameter is derived.
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收藏
页数：14
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