Gravitational waves in dark bubble cosmology

被引：7
|
作者：
Danielsson, U. [1 ]
Panizo, D. [1 ]
Tielemans, R. [2 ]
机构：
[1] Inst Fys & Astron, Box 803, SE-75108 Uppsala, Sweden
[2] Katholieke Univ Leuven, Inst Theoret Fys, Celestijnenlaan 200D, B-3001 Leuven, Belgium
来源：
PHYSICAL REVIEW D | 2022年 / 106卷 / 02期
关键词：
CREATION;
D O I：
10.1103/PhysRevD.106.024002
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper we construct the 5D uplift of 4D gravitational waves in de Sitter cosmology for the brane world scenario based on a nucleated bubble in AdS5. This makes it possible to generalize the connection between the dark bubbles and Vilenkin???s quantum cosmology to include gravitational perturbations. We also use the uplift to explain the interpretation of the apparently negative energy contributions in the 4D Einstein equations, which distinguish the dark bubble scenario from Randall-Sundrum.
引用
收藏
页数：13
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