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Type: Artigo de periódico
Title: Superinflation, quintessence, and nonsingular cosmologies
Author: Gunzig, E
Saa, A
Brenig, L
Faraoni, V
Rocha, TM
Figueiredo, A
Abstract: The dynamics of a universe dominated by a self-interacting nonminimally coupled scalar field are considered. The structure of the phase space and complete phase portraits are given. New dynamical behaviors include superinflation ((H) over dot >0), avoidance of big bang singularities through classical birth of the universe, and spontaneous entry into and exit from inflation. This model is promising for describing quintessence as a nonminimally coupled scalar field.
Country: EUA
Editor: American Physical Soc
Citation: Physical Review D. American Physical Soc, v. 63, n. 6, 2001.
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.63.067301
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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