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The role of a scalar-field potential in the Einstein-Kartan cosmology

Authors
  • Galiakhmetov, A. M.1
  • 1 Donetsk National Technical University, Russia , (Russia)
Type
Published Article
Journal
Russian Physics Journal
Publisher
Kluwer Academic Publishers-Consultants Bureau
Publication Date
Jun 01, 2006
Volume
49
Issue
6
Pages
642–647
Identifiers
DOI: 10.1007/s11182-006-0154-1
Source
Springer Nature
Keywords
License
Yellow

Abstract

Flat space isotropic cosmological models including a nonminimally coupled scalar field with a nonlinear potential are studied within the Einstein-Kartan theory. The exact general solutions for various types of scalar fields are derived for arbitrary values of the coupling constant ξ. It is shown that both singular and nonsingular models are feasible. The spectral values of ξ and restriction on ξ are found for the foregoing solutions. The cosmological consequence of taking into account the scalar-field potential is discussed.

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