论文标题
大RIP：通过鹰式辐射加热，并可能连接到保形循环宇宙学
Big Rip: heating by Hawking radiation and a possible connection to conformal cyclic cosmology
论文作者
论文摘要
在大的RIP宇宙学场景中，一个FRW宇宙，其中包含$ w <-1 $的暗能量的状态方程（Phantom Energy）的扩展，以至于在有限的时间段内，比例因子差异为无穷大，而宇宙视野的大小转向零。在这里，我们鉴于有望在FRW宇宙的明显范围内生成鹰辐射，并表明该辐射的能量密度和温度都在大RIP上差异。然后，我们利用这一事实提出了彭罗斯（Penrose）保形循环宇宙学模型的一种新变体，在该模型中，未来的时空度量在大裂口上变得不变，而不是在De Sitter Universe的遥远未来中。这消除了该模型对大量衰减的需求，并使其与当前的物理定律一致。
In the Big Rip cosmological scenario, a FRW universe containing dark energy with $w < -1$ in its equation of state (phantom energy) expands in such way that, in a finite time span, the scale factor diverges to infinity and the size of the cosmic horizon goes to zero. Here we revisit this scenario in light of the fact that Hawking radiation is expected to be generated at the apparent horizon of a FRW universe, and show that the energy density and temperature of that radiation both diverge at the Big Rip. We then use this fact to propose a new variant of Penrose's conformal cyclic cosmology model in which the future spacetime metric becomes conformally invariant at the Big Rip instead of in the remote future of a de Sitter universe; this removes the need for mass decay from the model and makes it consistent with current physical laws.
