Two-field models of dark energy with equation of state across-1

被引:161
作者
Zhang, XF
Li, H
Piao, YS
Zhang, XM
机构
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1142/S0217732306018469
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In this paper, we study the possibility of building two-field models of dark energy with equation of state across -1. Specifically we will consider two classes of models: one consists of two scalar fields (quintessence + phantom) and another includes one scalar (phantom) and one spinor field (neutrino). Our studies indicate to some extent that two-field models give rise to a simple realization of the dynamical dark energy model with the equation of state across w = -1.
引用
收藏
页码:231 / 241
页数:11
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