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arXiv 2008.07555hep-thhep-ph
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泡泡和沼泽地

de Sitter Bubbles and the Swampland

Alek Bedroya, Miguel Montero, Cumrun Vafa, Irene Valenzuela

摘要:

一些沼泽地的猜想,特别是跨普朗克审查猜想(TCC)表明,德西特空间是高度不稳定的,如果它存在的话。在本文中,我们构建了有效的理论标量滚动的潜力,这是双链的短命的dS空间衰减从一个到下一个通过级联的非微扰成核的气泡。我们发现了各种沼泽地标准,包括TCC,弱重力猜想和距离猜想的有效潜力的限制。令人惊讶的是,我们发现,TCC基本上合并了所有其他的,并导致一个子类的可能的双重有效电位。这些结果在一定程度上排除了二元有效理论中永恒暴胀的出现。我们讨论了我们的观测的一些宇宙学意义。

英文摘要:

A number of Swampland conjectures and in particular the Trans-Planckian Censorship Conjecture (TCC) suggest that de Sitter space is highly unstable if it exists at all. In this paper we construct effective theories of scalars rolling on potentials which are dual to a chain of short-lived dS spaces decaying from one to the next through a cascade of non-perturbative nucleation of bubbles. We find constraints on the effective potential resulting from various swampland criteria, including TCC, Weak Gravity Conjecture and Distance Conjecture. Surprisingly we find that TCC essentially incorporates all the other ones, and leads to a subclass of possible dual effective potentials. These results marginally rule out emergence of eternal inflation in the dual effective theory. We discuss some cosmological implications of our observations.

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