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Coupled Quintessence Inspired by Warm Inflation.
- Source :
-
Universe (2218-1997) . Aug2024, Vol. 10 Issue 8, p324. 13p. - Publication Year :
- 2024
-
Abstract
- We investigate a coupled quintessence cosmological model in which a dark-energy scalar field with an exponential potential interacts directly with a dark-matter fluid through a dissipative term inspired by warm inflation. The evolution equations of this model give rise to a three-dimensional dynamical system for which a thorough qualitative analysis is performed for all values of the relevant parameters. We find that the model is able to replicate the observed sequence of late-time cosmological eras, namely, a long enough matter-dominated era followed by a present era of accelerated expansion. In situations where there is a significant transfer of energy from dark energy to dark matter, temporary scaling-type solutions may arise, but, asymptotically, all solutions are dominated by dark energy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22181997
- Volume :
- 10
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Universe (2218-1997)
- Publication Type :
- Academic Journal
- Accession number :
- 179382741
- Full Text :
- https://doi.org/10.3390/universe10080324