Universität zu Köln

Kiefer, Claus and Sandhoefer, Barbara (2022). Quantum cosmology. Z. Naturfors. Sect. A-J. Phys. Sci., 77 (6). S. 543 - 560. BERLIN: WALTER DE GRUYTER GMBH. ISSN 1865-7109

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Abstract

We give an introduction into quantum cosmology with emphasis on its conceptual parts. After a general motivation, we review the formalism of canonical quantum gravity on which discussions of quantum cosmology are usually based. We then present the minisuperspace Wheeler-DeWitt equation and elaborate on the problem of time, the imposition of boundary conditions, the semiclassical approximation, the origin of irreversibility, and singularity avoidance. Restriction is made to the framework of quantum geometrodynamics.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kiefer, Claus UNSPECIFIED UNSPECIFIED UNSPECIFIED Sandhoefer, Barbara UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-659732
DOI:	10.1515/zna-2021-0384
Journal or Publication Title:	Z. Naturfors. Sect. A-J. Phys. Sci.
Volume:	77
Number:	6
Page Range:	S. 543 - 560
Date:	2022
Publisher:	WALTER DE GRUYTER GMBH
Place of Publication:	BERLIN
ISSN:	1865-7109
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TIME; GRAVITY Multiple languages Chemistry, Physical; Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/65973