Qualitative Analysis of the Dynamics of a Two-Component Chiral Cosmological Model
| Autor: | Sergey V. Chervon, Viktor Zhuravlev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
chiral cosmology lcsh:QC793-793.5 Dynamical systems theory critical points Scalar (mathematics) lcsh:Elementary particle physics General Physics and Astronomy Cosmological model dynamical system Asymptotic dynamics Theoretical physics General Relativity and Quantum Cosmology Qualitative analysis qualitative analysis Condensed Matter::Strongly Correlated Electrons |
| Zdroj: | Universe, Vol 6, Iss 195, p 195 (2020) Universe Volume 6 Issue 11 |
| ISSN: | 2218-1997 |
| Popis: | We present a qualitative analysis of chiral cosmological model (CCM) dynamics with two scalar fields in the spatially flat Friedman&ndash Robertson&ndash Walker Universe. The asymptotic behavior of chiral models is investigated based on the characteristics of the critical points of the selfinteraction potential and zeros of the metric components of the chiral space. The classification of critical points of CCMs is proposed. The role of zeros of the metric components of the chiral space in the asymptotic dynamics is analysed. It is shown that such zeros lead to new critical points of the corresponding dynamical systems. Examples of models with different types of zeros of metric components are represented. |
| Databáze: | OpenAIRE |
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