含有相互作用的高维全息暗能量  

Interacting high dimensional holographic dark energy

作　　者：王华[1] 刘道军[1] 

机构地区：[1]上海师范大学天体物理研究中心,上海200234

出　　处：《上海师范大学学报（自然科学版）》2010年第5期530-535,共6页Journal of Shanghai Normal University(Natural Sciences)

基　　金：上海市教委科研创新项目(09YZ148)

摘　　要：使用高维黑洞作为能量截断,可以将通常的全息暗能量模型推广为高维全息暗能量模型.研究以一种特定的相互作用形式与物质耦合的5维全息暗能量模型,并分别取哈勃视界和未来事件视界作为红外截断.与其他包含相互作用项的宇宙学模型不同,当取哈勃视界作为红外截断时,在此模型中宇宙可以避免进入一个大撕裂的未来;在取未来事件视界做红外截断时,发现约束宇宙演化的方程没有稳定的吸引子解.By using the high dimensional black hole instead of 4-dimensional black hole to make energy cut off,the common holographic dark energy model can be modified to higher dimensionalone.In this paper,we consider a 5-dimensional holographic dark energy model which contains a special kind of interacting term,and choose hubble horizon and future event horizon as infrared cut-off respectively.Compared to the other interacting holographic dark energy model,in this model,the universe can avoid undergoing big rip in the future hubble horizon is chosen as infrared cut-off.When Considering the future event horizon as infrared cut-off,we obtain a couple of dynamic equations for the universe and find out that there is no stable attractor solution.

关 键 词：高维黑洞 全息暗能量 大撕裂 吸引子解 

分 类 号：P159.3[天文地球—天文学]