Peculiarities of Cosmological Models Based on a Nonlinear Asymmetric Scalar Doublet with Minimal Interaction. I. Qualitative Analysis
- Авторы: Ignat’ev Y.1, Kokh I.1
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Учреждения:
- Kazan Federal University
- Выпуск: Том 25, № 1 (2019)
- Страницы: 24-36
- Раздел: Article
- URL: https://journals.rcsi.science/0202-2893/article/view/176262
- DOI: https://doi.org/10.1134/S0202289319010055
- ID: 176262
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Аннотация
A detailed comparative qualitative analysis is carried out for of the evolution of cosmological models based on a doublet of classical and phantom scalar fields with self-action. Just as in the case of a single scalar field, the phase space of such systems becomes multiply connected, there appear ranges of negative total effective energy unavailable for motion. A distinctive feature of the asymmetrical scalar doublet is the time dependence of prohibited ranges’ projections on the phase subspaces of each field.
Об авторах
Yu. Ignat’ev
Kazan Federal University
Автор, ответственный за переписку.
Email: ignatev_yu@rambler.ru
Россия, Kremlyovskaya ul. 18, Kazan, 420008
I. Kokh
Kazan Federal University
Email: ignatev_yu@rambler.ru
Россия, Kremlyovskaya ul. 18, Kazan, 420008