快速下降的暗能量和宇宙膨胀的结束
Rapidly Descending Dark Energy and the End of Cosmic Expansion
摘要：
如果暗能量是一种由标量场$ϕ$驱动的精粹形式，它沿着一个单调递减的势$V(ϕ)$向下演化，这个势足够低于零，宇宙注定要经历一系列平滑的转变。目前观察到的加速膨胀将停止;此后不久，膨胀将完全结束;宇宙将进入缓慢收缩的阶段。在本文中，我们考虑如何短的剩余期间的膨胀可以给目前的观测约束暗能量。我们还讨论了这种情况如何自然地符合循环宇宙学和最近关于量子引力的猜想。
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
