ACCELERATED UNIVERSE FROM G-ESSENCE
| Autor: | F.B. Belisarova, K.K. Yerzhanov, P.Yu. Tsyba, Sh.R. Myrzakul, I.I. Kulnazarov |
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| Jazyk: | English<br />Kazakh<br />Russian |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Вестник. Серия физическая, Vol 36, Iss 1, Pp 86-92 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1563-0315 2663-2276 |
| Popis: | In the present work we analyze the g-essence model for the particular Lagrangian: L=R+2[aXn+eY-V(y/,y)]. The g-essence models were proposed recently as an alternative and as a generalization to the scalar k-essence. We have presented the 3 types solutions of the g-essence model. We reconstructed the corresponding potentials and the dynamics of the scalar and fermionic fields according the evolution of the scale factor. The obtained results show that the g-essence model can describes the decelerated and accelerated expansion phases of the universe. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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