The dynamics of scalar-field Quintom cosmological models
| Autor: | Tot, Jonathan, Yildirim, Balkar, Coley, Alan, Leon, Genly |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | We shall present a complete (compactified) dynamical systems analysis of the Quintom model comprised of an interacting quintessence scalar field and a phantom. We find a range for the model parameters $\kappa, \lambda$ such that there are expanding Quintom cosmologies that undergo two inflationary periods, and this behaviour is not destabilized by spatial curvature. We also discuss a class of bouncing cosmologies. Finally, the linear cosmological perturbations are studied. Comment: 12 pages, 4 figures |
| Databáze: | arXiv |
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