论文标题
迅速下降的暗能量和宇宙膨胀的末端
Rapidly Descending Dark Energy and the End of Cosmic Expansion
论文作者
论文摘要
如果暗能是由标量场$ ϕ $驱动的一种典型形式，从而使单调降低的潜在$ v（ϕ）$进化，该$ v（ϕ）$的传递足够低于零，则宇宙注定要进行一系列平滑过渡。当前观察到的加速扩张将停止；此后不久，扩张将完全结束。宇宙将进入缓慢收缩的阶段。在本文中，我们考虑了剩余的扩展时期的短期，可以在黑暗能源上进行当前的观察限制。我们还讨论了这种情况如何与循环宇宙学和有关量子重力的最新猜想自然契合。
If dark energy is a form of quintessence driven by a scalar field $ϕ$ evolving down a monotonically decreasing potential $V(ϕ)$ that passes sufficiently below zero, the universe is destined to undergo a series of smooth transitions. The currently observed accelerated expansion will cease; soon thereafter, expansion will come to end altogether; and the universe will pass into a phase of slow contraction. In this paper, we consider how short the remaining period of expansion can be given current observational constraints on dark energy. We also discuss how this scenario fits naturally with cyclic cosmologies and recent conjectures about quantum gravity.
