The particle versus the future event horizon in an interacting holographic dark energy model
The particle versus the future event horizon in an interacting holographic dark energy model
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DOI：
10.1088/1475-7516/2007/02/026
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发表时间：
2007-01
影响因子：
6.4
通讯作者：
H. M. Sadjadi
中科院分区：
文献类型：
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作者：
H. M. Sadjadi
选取未来视界作为平坦的Friedmann-Lemaitre-Robertson-Walker宇宙的视界，我们证明了相互作用全息暗能量模型能够解释幻影分界线的交叉。我们发现，如果我们把粒子视界作为宇宙的视界，除了描述ω=−1交叉(基于天体物理数据)外，我们还能够适当地确定跃迁时暗物质与暗能量密度的比率。在这种方法中，在第一次从精华阶段到幻象阶段之后，又有一次从精华阶段到精华阶段的转变，从而避免了大撕裂奇点。
Choosing the future event horizon as the horizon of the flat Friedmann–Lemaitre–Robertson–Walker universe, we show that the interacting holographic dark energy model is able to explain the phantom divide line crossing. We show that if we take the particle event horizon as the horizon of the universe, besides describing the ω = −1 crossing (based on astrophysical data), we are able to determine appropriately the ratio of dark matter to dark energy density at the transition time. In this approach, after the first transition from the quintessence to the phantom phase, there is another transition from the phantom to the quintessence phase which avoids the big rip singularity.