Comment on Ricci dark energy in Chern-Simons modified gravity

被引：16
|
作者：
Myung, Yun Soo [1 ,2 ]
机构：
[1] Inje Univ, Inst Basic Sci, Gimhae 621749, South Korea
[2] Inje Univ, Dept Comp Simulat, Gimhae 621749, South Korea
来源：
EUROPEAN PHYSICAL JOURNAL C | 2013年 / 73卷 / 08期
基金：
新加坡国家研究基金会;
关键词：
Dark Energy; Cosmological Constant; Friedmann Equation; Cosmological Evolution; Ricci Dark Energy;
D O I：
10.1140/epjc/s10052-013-2515-6
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：
We revisit the Ricci dark energy in Chern-Simons modified gravity. As far as the cosmological evolution, this is nothing but the Ricci dark energy with a minimally coupled scalar without potential which means that the role of Chern-Simons term is suppressed. Using the equation of state parameter, this model is similar to the modified Chaplygin gas model only when two are around the de Sitter universe deriving by the cosmological constant in the future. However, the two past evolutions are different.
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页码：1 / 4
页数：4
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