Superinflation, quintessence, and nonsingular cosmologies

被引：79

作者：

Gunzig, E

Saa, A

Brenig, L

Faraoni, V

Rocha, TM

Figueiredo, A

机构：

[1] Free Univ Brussels, RggR, B-1050 Brussels, Belgium

[2] Inst Int Chim & Phys Solvay, B-1050 Brussels, Belgium

[3] Univ Barcelona, Dept Fis Fonamental, E-08028 Barcelona, Spain

[4] UNICAMP, IMECC, Dept Matemat Aplicada, BR-13081970 Campinas, SP, Brazil

[5] Free Univ Brussels, Serv Phys Stat, B-1050 Brussels, Belgium

[6] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[7] Univ Brasilia, Inst Fis, BR-70910900 Brasilia, DF, Brazil

来源：

PHYSICAL REVIEW D | 2001年 / 63卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.63.067301

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：4

共 24 条

[1] GRAVITATIONAL EFFECTS ON THE SU(5) BREAKING PHASE-TRANSITION FOR A COLEMAN-WEINBERG POTENTIAL [J].