东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (4): 605-608.DOI: -

• 数学·物理 • 上一篇    

非平宇宙中的全息精质模型

张敬飞   

  1. (东北大学理学院，辽宁沈阳110819)
  • 收稿日期:2012-05-17 修回日期:2012-05-17 出版日期:2013-04-15 发布日期:2013-06-19
  • 通讯作者: 张敬飞
  • 作者简介:张敬飞(1978-)，女，辽宁阜新人，东北大学副教授.
  • 基金资助:
    国家自然科学基金资助项目(10975032，11047112，11175042)；教育部新世纪优秀人才支持计划项目(NCET-09-0276)；中央高校基本科研业务费专项资金资助项目(N090305003，N110405011).

Holographic Quintessence Model in Nonflat Universe

ZHANG Jingfei   

  1. School of Sciences， Northeastern University， Shenyang 110819， China.
  • Received:2012-05-17 Revised:2012-05-17 Online:2013-04-15 Published:2013-06-19
  • Contact: ZHANG Jingfei
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摘要： 提出了非平宇宙中的全息精质模型，构造出精质标量场，对全息暗能量的宇宙学演化进行有效描述.推导了全息暗能量在非平宇宙中的演化方程，进一步通过与正则标量场建立对应，构造出全息精质标量场模型，并讨论了空间曲率对模型的影响.结果表明，空间曲率对标量场演化的影响主要表现在高红移区域，而对于重构出的标量场势函数，在标量场值越小的区域空间曲率的影响越大.

关键词: 全息暗能量, 标量场模型重构, 全息精质, 非平宇宙, 宇宙学演化

Abstract: A holographic quintessence model in a nonflat universe was put forward to describe effectively the cosmological evolution of the holographic dark energy， in which a quintessence scalar field was reconstructed. The evolution equations of the holographic dark energy in a nonflat universe were derived， and furthermore the holographic quintessence model was reconstructed via the establishment of the correspondence with the canonical scalar field. Finally， the impacts of the spatial curvature on the model were discussed. The results showed that the main effect of the spatial curvature on the scalar field evolution was in the high redshift regions， and for the reconstructed potential of the scalar field， the smaller value of the field was， the more impact the spatial curvature existed.

Key words: holographic dark energy, scalar field model reconstruction, holographic quintessence, nonflat universe, cosmological evolution

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