Avoiding the big-rip jeopardy in a quintom dark energy model with hither derivatives

被引：41

作者：

Zhang, Xiao-fei ^{[1
]}

Qiu, Taotao ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100049, Peoples R China

来源：

PHYSICS LETTERS B | 2006年 / 642卷 / 03期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physletb.2006.09.038

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In the framework of a single scalar field quintom model with higher derivative, we construct in this Letter a dark energy model of which the equation of state (EOS) w crosses over the cosmological constant boundary. Interestingly during the evolution of the universe w < -1 happens just for a period of time with a distinguished feature that w starts with a value above -1, transits into w < -1, then comes back to w > -1. This avoids the big-rip jeopardy induced by w < -1. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：187 / 191

页数：5

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