Universität zu Köln

Kamenshchik, Alexander, Kiefer, Claus ORCID: 0000-0001-6163-9519 and Kwidzinski, Nick (2016). Classical and quantum cosmology of Born-Infeld type models. Phys. Rev. D, 93 (8). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1550-2368

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Abstract

We discuss Born-Infeld type fields (tachyon fields) in classical and quantum cosmology. We first partly review and partly extend the discussion of the classical solutions and focus in particular on the occurrence of singularities. For quantization, we employ geometrodynamics. In the case of constant potential, we discuss both Wheeler-DeWitt quantization and reduced quantization. We are able to give various solutions and discuss their asymptotics. For the case of general potential, we transform the Wheeler-DeWitt equation to a form where it leads to a difference equation. Such a difference equation was previously found in the quantization of black holes. We give explicit results for the cases of constant potential and inverse squared potential and point out special features possessed by solutions of the difference equation.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kamenshchik, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Kiefer, Claus UNSPECIFIED orcid.org/0000-0001-6163-9519 UNSPECIFIED Kwidzinski, Nick UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-278427
DOI:	10.1103/PhysRevD.93.083519
Journal or Publication Title:	Phys. Rev. D
Volume:	93
Number:	8
Date:	2016
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1550-2368
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MECHANICS Multiple languages Astronomy & Astrophysics; Physics, Particles & Fields Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/27842