论文标题

气泡需要字符串

Bubble needs strings

论文作者

Banerjee, Souvik, Danielsson, Ulf, Giri, Suvendu

论文摘要

在本文中,我们要强调字符串在模型中扮演的关键作用,该模型使用扩展的泡沫实现DE Sitter,并在Arxiv:1807.01570,Arxiv:1907.04268和Arxiv:Arxiv和Arxiv:2001.07433。与Brane定位的重力的Randall-Sundrum模型相反,我们使用径向拉伸的字符串的终点来获得气泡壁上引起的物质采购重力。这使我们能够重新解释可能从幼稚维度减小的质量降低中可能的差异,因为在四个维粒子物理学中的质量重新归一化。此外,我们认为,批量的残留时间依赖性是在最近的一些可能缺点的情况下指出的,它会在存在这些弦乐源的情况下自动治愈。

In this paper, we want to emphasize the pivotal role played by strings in the model realizing de Sitter using an expanding bubble, proposed and subsequently developed in arXiv:1807.01570, arXiv:1907.04268, and arXiv:2001.07433. Contrary to the Randall-Sundrum model of brane-localized gravity, we use the end points of radially stretched strings to obtain matter sourcing gravity induced on the bubble wall. This allows us to reinterpret the possible volume divergence coming from naive dimensional reduction as mass renormalization in four dimensional particle physics. Furthermore, we argue that the residual time dependence in the bulk, pointed out by some recent work as a possible shortcoming of such models, is automatically cured in presence of these stringy sources.

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