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Global stability analysis for cosmological models with nonminimally coupled scalar fieldsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 ноября 2014 г.
- Авторы: Skugoreva Maria A., Toporensky Alexey V., Vernov Sergey Yu
- Журнал: Physical Review D
- Том: 90
- Номер: 6
- Год издания: 2014
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 064044
- DOI: 10.1103/PhysRevD.90.064044
- Аннотация: We explore dynamics of cosmological models with a nonminimally coupled scalar field evolving on a spatially flat Friedmann-Lemaître-Robertson-Walker background. We consider cosmological models including the Hilbert-Einstein curvature term and the N degree monomial of the scalar field nonminimally coupled to gravity. The potential of the scalar field is the n degree monomial or polynomial. We describe several qualitatively different types of dynamics depending on values of power indices N and n . We identify that three main possible pictures correspond to n<N , N<n<2N and n>2N cases. Some special features connected with the important cases of N=n (including the quadratic potential with quadratic coupling) and n=2N (which shares its asymptotics with the potential of the Higgs-driven inflation) are described separately. A global qualitative analysis allows us to cover the most interesting cases of small N and n by a limiting number of phase-space diagrams. The influence of the cosmological constant to the global features of dynamics is also studied.
- Добавил в систему: Вернов Сергей Юрьевич