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On the inflationary solutions in higher-derivative gravity with dilaton field | | A.L. Maroto I.L. Shapiro
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25 Jun 1997 | | Journal: | Phys.Lett. B414 (1997) 34-44 | | Subject: | hep-th | | Affiliation: | Universidad Autonoma de Madrid) I.L. Shapiro (Universidade Federal de Juiz de Fora and Tomsk State Pedagogical University | | Abstract: | We discuss the existence of de Sitter inflationary solutions for the string-inspired fourth-derivative gravity theories with dilaton field. We consider a space-time of arbitrary dimension D and an arbitrary parametrization of the target space metric. The specific features of the theory in dimension D=4 and those of the special ghost-free parametrization of the metric are found. We also consider similar string-inspired theories with torsion and construct an inflationary solution with torsion and dilaton for D=4. The stability of the inflationary solutions is also investigated. | | Source: | arXiv, hep-th/9706179 | | Services: | Forum | Review | PDF | Favorites | |
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