Dynamics of an interacting dark energy model in Einstein and loop quantum cosmology

被引：85
|
作者：
Chen, Songbai [1 ,2 ,3 ,4 ]
Wang, Bin [4 ]
Jing, Jiliang [1 ,2 ,3 ]
机构：
[1] Hunan Normal Univ, Inst Phys, Changsha 410081, Hunan, Peoples R China
[2] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China
[3] Hunan Normal Univ, Minist Educ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Changsha 410081, Hunan, Peoples R China
[4] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China
来源：
PHYSICAL REVIEW D | 2008年 / 78卷 / 12期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1103/PhysRevD.78.123503
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We investigate the background dynamics when dark energy is coupled to dark matter in the Universe described by Einstein cosmology and loop quantum cosmology. We introduce a new general form of dark sector coupling, which presents a more complicated dynamical phase space. Differences in the phase space in obtaining the accelerated scaling attractor in Einstein cosmology and loop quantum cosmology are disclosed.
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页数：8
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