论文标题
第五维度的暗能量
Dark Energy from the Fifth Dimension
论文作者
论文摘要
将重力的regge-teitelboim公式扩展到包括背景嵌入空间不平坦的情况下，我们检查了嵌入在各种五维背景中的四维$ k = 0 $ robertson-Walker（RW）歧管的动力学。我们发现，当背景是五维设立空间时，RW歧管经历了从脱水阶段转变为加速阶段的过渡。这发生在包含物质，辐射或宇宙恒定源之前，因此不需要不同组件的平衡。我们获得了该模型对哈勃参数数据的合理两参数拟合。
After extending the Regge-Teitelboim formulation of gravity to include the case where the background embedding space is not flat, we examine the dynamics of the four-dimensional $k=0$ Robertson-Walker (RW) manifold embedded in various five-dimensional backgrounds. We find that when the background is five-dimensional de Sitter space, the RW manifold undergoes a transition from a de-accelerating phase to an accelerating phase. This occurs before the inclusion of matter, radiation or cosmological constant sources, and thus does not require a balance of different components. We obtain a reasonable two-parameter fit of this model to the Hubble parameter data.
