Format:
Online-Ressource (XIII, 100 p. 16 illus., 12 illus. in color, online resource)
ISBN:
9784431549475
Series Statement:
Springer Theses, Recognizing Outstanding Ph.D. Research
Content:
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
Note:
Description based upon print version of record
,
IntroductionCausal Dynamical Triangulation -- n-DBI Gravity -- Summary -- Appendices.
Additional Edition:
ISBN 9784431549468
Additional Edition:
Erscheint auch als Druck-Ausgabe ISBN 978-443-15494-6-8
Additional Edition:
Erscheint auch als Druck-Ausgabe Space-time foliation in quantum gravity Tokyo : Springer, 2014 ISBN 9784431549468
Language:
English
Keywords:
Quantengravitation
;
Raum-Zeit
;
Hochschulschrift
DOI:
10.1007/978-4-431-54947-5
URL:
Volltext
(lizenzpflichtig)
