非平宇宙中的全息精质模型

Holographic Quintessence Model in Non-flat Universe

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.

A holographic quintessence model effectively the cosmological evolution of the scalar field was reconstructed. The evolution in a non-flat universe was put forward to describe holographic dark energy, in which a quintessence 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.