Publication
Coupled quintessence inspired by warm inflation
| dc.contributor.author | Sá, Paulo | |
| dc.date.accessioned | 2025-01-16T11:49:49Z | |
| dc.date.available | 2025-01-16T11:49:49Z | |
| dc.date.issued | 2024-08-10 | |
| dc.description.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 dissipa tive 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. | eng |
| dc.identifier.doi | 10.3390/universe10080324 | |
| dc.identifier.issn | 2218-1997 | |
| dc.identifier.uri | http://hdl.handle.net/10400.1/26631 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | MDPI | |
| dc.relation | Institute of Astrophysics and Space Sciences | |
| dc.relation | Institute of Astrophysics and Space Sciences | |
| dc.relation.ispartof | Universe | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Coupled quintessence | |
| dc.subject | Dark energy | |
| dc.subject | Dark matter | |
| dc.subject | Cosmology | |
| dc.title | Coupled quintessence inspired by warm inflation | eng |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | Institute of Astrophysics and Space Sciences | |
| oaire.awardTitle | Institute of Astrophysics and Space Sciences | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04434%2F2020/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04434%2F2020/PT | |
| oaire.citation.issue | 8 | |
| oaire.citation.startPage | 324 | |
| oaire.citation.title | Universe | |
| oaire.citation.volume | 10 | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.fundingStream | 6817 - DCRRNI ID | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Sá | |
| person.givenName | Paulo | |
| person.identifier.ciencia-id | 4116-AE55-DC83 | |
| person.identifier.orcid | 0000-0003-4321-0801 | |
| person.identifier.rid | AAD-7568-2019 | |
| person.identifier.scopus-author-id | 7003787777 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
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