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A Closed Friedmann Universe with a Scalar Field as Source
Author(s) -
Gottlöber S.
Publication year - 1984
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.19844960107
Subject(s) - scale factor (cosmology) , friedmann equations , scalar field , physics , singularity , universe , scalar (mathematics) , initial singularity , mathematical physics , field (mathematics) , metric expansion of space , cosmology , mathematical analysis , mathematics , de sitter universe , quantum mechanics , pure mathematics , geometry , dark energy
The evolution is examined of a closed Friedmann universe, the source of which is a classical massive scalar field. Supposing a minimal value a 0 the initial values are chosen in such a way that the solutions are time symmetric. The scale factor passes a maximal value and then decreases to zero (singularity). For special initial values a phase with exponential increasing scale factor exists.