Space-time foliation in quantum gravity [electronic resource]
- 作者： Sato, Yuki.
- 其他作者：
- 其他題名：
- Springer Theses
- 出版： Tokyo : Springer Japan :Imprint: Springer
- 叢書名： Springer Theses
- 主題： Quantum gravity , Space and time , Physics , Classical and Quantum Gravitation, Relativity Theory. , Mathematical Methods in Physics. , Mathematical physics
- ISBN： 9784431549475 (electronic bk.) 、 9784431549468 (paper)
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FIND@SFXID:
CGU
- 資料類型: 電子書
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讀者標籤：
- 系統號： 005120333 | 機讀編目格式
館藏資訊
In this thesis, the author considers quantum gravity to investigate the mysterious origin of our universe and its mechanisms. He and his collaborators have greatly improved the analyticity of two models: causal dynamical triangulations (CDT) and n-DBI gravity, with the space-time foliation which is one common factor shared by these two separate models. In the first part, the analytic method of coupling matters to CDT in 2-dimensional toy models is proposed to uncover the underlying mechanisms of the universe and to remove ambiguities remaining in CDT. As a result, the wave function of the 2-dimensional universe where matters are coupled is derived. The behavior of the wave function reveals that the Hausdorff dimension can be changed when the matter is non-unitary. In the second part, the n-DBI gravity model is considered. The author mainly investigates two effects driven by the space-time foliation: the appearance of a new conserved charge in black holes and an extra scalar mode of the graviton. The former implies a breakdown of the black-hole uniqueness theorem while the latter does not show any pathological behavior.