Parametrizations of the dark energy density and scalar potentials

被引：123

作者：

Guo, Zong-Kuan ^{[1
]}

Ohta, Nobuyoshi ^{[1
]}

Zhang, Yuan-Zhong ^{[2
]}

机构：

[1] Kinki Univ, Dept Phys, Osaka 5778502, Japan

[2] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China

来源：

MODERN PHYSICS LETTERS A | 2007年 / 22卷 / 12期

基金：

中国国家自然科学基金; 日本学术振兴会;

关键词：

dark energy; quintessence field; phantom field;

D O I：

10.1142/S0217732307022839

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We develop a theoretical method of constructing the scalar (quintessence or phantom) potential directly from the dimensionless dark energy function X(z), the dark energy density in units of its present value. We apply our method to two parametrizations of the dark energy density, the quiessence-Lambda ansatz and the generalized Chaplygin gas model, and discuss some features of the constructed potentials.

引用

收藏

页码：883 / 890

页数：8

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