论文标题
宇宙学的自下而上全息模型
Bottom-up holographic models for cosmology
论文作者
论文摘要
在本说明中，我们研究了ARXIV中引入的自下而上全息宇宙学方法的一些简单概括：1810.10601。我们的模型利用KARCH/RANDALL/TAKAYANAGI ANSATZ进行边界形成野外理论的重力双重双重，涉及纯ADS重力和世界末日的Brane。遵循Arxiv：2102.05057中提出的建议，我们考虑了大容量中有附加接口的模型。我们发现，只有在我们的模型被进一步推广的情况下，才存在具有可行宇宙学解释的解决方案，例如，通过在ETW Brane作用中包括Einstein-Hilbert术语。从有效理论的角度讨论了此类模型的物理有效性。
In this note, we investigate some simple generalizations of a bottom-up holographic approach to cosmology introduced in arXiv:1810.10601. Our models utilize the Karch/Randall/Takayanagi ansatz for the gravitational dual of a boundary conformal field theory, involving pure AdS gravity and an end-of-the-world brane. Following a suggestion made in arXiv:2102.05057, we consider models with an additional interface brane in the bulk. We find that solutions with a viable cosmological interpretation exist only if our model is further generalized, for example by including an Einstein-Hilbert term in the ETW brane action. The physical validity of such models is discussed from the perspective of the effective theory.
