Dark energy model with spinor matter and its quintom scenario

被引：94
|
作者：
Cai, Yi-Fu [1 ]
Wang, Jing [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, POB 918-4, Beijing 100049, Peoples R China
[2] Hebei Normal Univ, Dept Phys Sci, Hebei, Peoples R China
来源：
CLASSICAL AND QUANTUM GRAVITY | 2008年 / 25卷 / 16期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1088/0264-9381/25/16/165014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A class of dynamical dark energy models, dubbed spinor quintom, can be constructed by a spinor field psi with a nontraditional potential. We find that, if choosing suitable potential, this model is able to allow the equation-of-state to cross the cosmological constant boundary without introducing any ghost fields. In a further investigation, we show that this model is able to mimic a perfect fluid of Chaplygin gas with p = -c/rho during the evolution, and also realizes the quintom scenario with its equation-of-state across -1.
引用
收藏
页数：12
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