Space-Time Foliation in Quantum Gravity

By:

Yuki Sato

Format:

Paperback / softback

Series:

Springer Theses

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Description

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.

Author Biography:

Dr.Yuki Sato Nagoya University Department of Physics Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan

Release date NZ

August 23rd, 2016

Author

Yuki Sato

Series

Springer Theses

Pages

100

Edition

Softcover reprint of the original 1st ed. 2014

Audience

Professional & Vocational

Illustrations

12 Illustrations, color; 4 Illustrations, black and white; XIII, 100 p. 16 illus., 12 illus. in color.

Dimensions

155x235x6

ISBN-13

9784431562252

Product ID

25684402

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