{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,4]],"date-time":"2026-02-04T17:18:15Z","timestamp":1770225495830,"version":"3.49.0"},"reference-count":35,"publisher":"World Scientific Pub Co Pte Ltd","issue":"15","funder":[{"name":"Funda\u00e7\u00e3ao para a Ci\u00eancia e a Tecnologia","award":["UIDB\/00099\/2020"],"award-info":[{"award-number":["UIDB\/00099\/2020"]}]},{"name":"Funda\u00e7\u00e3ao para a Ci\u00eancia e a Tecnologia","award":["UIDB\/04434\/2020"],"award-info":[{"award-number":["UIDB\/04434\/2020"]}]},{"name":"Funda\u00e7\u00e3ao para a Ci\u00eancia e a Tecnologia","award":["UIDP\/04434\/2020"],"award-info":[{"award-number":["UIDP\/04434\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Mod. Phys. D"],"published-print":{"date-parts":[[2022,11]]},"abstract":"<jats:p> In this paper, we investigate a cosmological model in which dark energy, represented by a quintessential scalar field, is directly coupled to a dark-matter perfect fluid. We are interested in solutions of cosmological relevance, namely those for which a dark-matter-dominated era long enough to allow for structure formation is followed by an era of accelerated expansion driven by dark energy. For the coupling between these two dark components of the universe, we choose forms that generalize the one most commonly used in the literature. Resorting to powerful methods of qualitative analysis of dynamical systems, we show that, for certain generalized forms of the coupling, final states of our coupled quintessential model correspond to solutions in which the evolution of the universe is completely dominated by dark energy. In this case, there are no scaling solutions. Interestingly, however, for certain values of a relevant parameter, during the approach to the final state of evolution, the cosmological parameters change so slowly that, for all practical purposes, the solution appears to be stuck in a state corresponding to a scaling solution. <\/jats:p>","DOI":"10.1142\/s0218271822501115","type":"journal-article","created":{"date-parts":[[2022,8,31]],"date-time":"2022-08-31T08:42:10Z","timestamp":1661935330000},"source":"Crossref","is-referenced-by-count":11,"title":["Coupled quintessence with a generalized interaction term"],"prefix":"10.1142","volume":"31","author":[{"given":"Robertus","family":"Potting","sequence":"first","affiliation":[{"name":"Departamento de F\u00edsica, Faculdade de Ci\u00eancias e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"},{"name":"Centro de Astrof\u00edsica e Gravita\u00e7\u00e3o, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, Portugal"}]},{"given":"Paulo M.","family":"S\u00e1","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Faculdade de Ci\u00eancias e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"},{"name":"Instituto de Astrof\u00edsica e Ci\u00eancias do Espa\u00e7o, Faculdade de Ci\u00eancias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal"}]}],"member":"219","published-online":{"date-parts":[[2022,10,8]]},"reference":[{"key":"S0218271822501115BIB001","doi-asserted-by":"publisher","DOI":"10.1086\/300499"},{"key":"S0218271822501115BIB002","doi-asserted-by":"publisher","DOI":"10.1086\/307221"},{"key":"S0218271822501115BIB003","doi-asserted-by":"publisher","DOI":"10.1103\/RevModPhys.61.1"},{"key":"S0218271822501115BIB004","doi-asserted-by":"publisher","DOI":"10.1016\/j.crhy.2012.04.008"},{"key":"S0218271822501115BIB005","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.80.1582"},{"key":"S0218271822501115BIB006","doi-asserted-by":"publisher","DOI":"10.1142\/S021827180600942X"},{"key":"S0218271822501115BIB007","doi-asserted-by":"publisher","DOI":"10.1007\/s10509-012-1181-8"},{"key":"S0218271822501115BIB008","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-018-0542-z"},{"key":"S0218271822501115BIB009","doi-asserted-by":"crossref","first-page":"103519","DOI":"10.1103\/PhysRevD.102.103519","volume":"102","author":"S\u00e1 P. M.","year":"2020","journal-title":"Phys. Rev. D"},{"key":"S0218271822501115BIB010","doi-asserted-by":"crossref","first-page":"123517","DOI":"10.1103\/PhysRevD.103.123517","volume":"103","author":"S\u00e1 P. M.","year":"2021","journal-title":"Phys. Rev. D"},{"key":"S0218271822501115BIB011","doi-asserted-by":"publisher","DOI":"10.1142\/S0218271815300074"},{"key":"S0218271822501115BIB012","doi-asserted-by":"publisher","DOI":"10.1088\/0034-4885\/79\/9\/096901"},{"key":"S0218271822501115BIB013","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.60.043501"},{"key":"S0218271822501115BIB014","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.61.043506"},{"key":"S0218271822501115BIB015","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.61.083503"},{"key":"S0218271822501115BIB016","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.62.043511"},{"key":"S0218271822501115BIB017","doi-asserted-by":"crossref","first-page":"063508","DOI":"10.1103\/PhysRevD.65.063508","volume":"65","author":"Tocchini-Valentini D.","year":"2002","journal-title":"Phys. Rev. D"},{"key":"S0218271822501115BIB018","doi-asserted-by":"publisher","DOI":"10.1088\/1475-7516\/2005\/06\/007"},{"key":"S0218271822501115BIB019","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.78.023505"},{"key":"S0218271822501115BIB020","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.89.103540"},{"key":"S0218271822501115BIB021","doi-asserted-by":"crossref","first-page":"017","DOI":"10.1088\/1475-7516\/2016\/05\/017","volume":"05","author":"Singh S.","year":"2016","journal-title":"J. Cosmol. Astropart. Phys."},{"key":"S0218271822501115BIB022","doi-asserted-by":"publisher","DOI":"10.1016\/j.physrep.2018.09.001"},{"key":"S0218271822501115BIB023","doi-asserted-by":"crossref","first-page":"123002","DOI":"10.1103\/PhysRevD.91.123002","volume":"91","author":"B\u00f6hmer C. G.","year":"2015","journal-title":"Phys. Rev. D"},{"key":"S0218271822501115BIB024","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.91.123003"},{"key":"S0218271822501115BIB025","doi-asserted-by":"publisher","DOI":"10.1051\/0004-6361\/201525830"},{"key":"S0218271822501115BIB026","first-page":"321","volume":"301","author":"Wetterich C.","year":"1995","journal-title":"Astron. Astrophys."},{"key":"S0218271822501115BIB027","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.74.023525"},{"key":"S0218271822501115BIB028","doi-asserted-by":"crossref","first-page":"123517","DOI":"10.1103\/PhysRevD.98.123517","volume":"98","author":"Frusciante N.","year":"2018","journal-title":"Phys. Rev. D"},{"key":"S0218271822501115BIB029","doi-asserted-by":"publisher","DOI":"10.1016\/j.physletb.2019.01.009"},{"key":"S0218271822501115BIB030","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevD.57.4686"},{"key":"S0218271822501115BIB031","doi-asserted-by":"crossref","first-page":"123525","DOI":"10.1103\/PhysRevD.82.123525","volume":"82","author":"Lopez Honorez L.","year":"2010","journal-title":"Phys. Rev. D"},{"key":"S0218271822501115BIB032","volume-title":"Applications of Centre Manifold Theory","author":"Carr J.","year":"1982"},{"key":"S0218271822501115BIB033","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4612-1140-2"},{"key":"S0218271822501115BIB034","doi-asserted-by":"crossref","DOI":"10.1007\/978-3-642-61661-7","volume-title":"Methods in the Qualitative Theory of Dynamical Systems in Astrophysics and Gas Dynamics","author":"Bogoyavlensky O. I.","year":"1985"},{"key":"S0218271822501115BIB035","doi-asserted-by":"crossref","first-page":"042","DOI":"10.1088\/1475-7516\/2017\/03\/042","volume":"03","author":"Bouhmadi-L\u00f3pez M.","year":"2017","journal-title":"J. Cosmol. Astropart. Phys."}],"container-title":["International Journal of Modern Physics D"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0218271822501115","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,11,23]],"date-time":"2022-11-23T08:17:52Z","timestamp":1669191472000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/10.1142\/S0218271822501115"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,10,8]]},"references-count":35,"journal-issue":{"issue":"15","published-print":{"date-parts":[[2022,11]]}},"alternative-id":["10.1142\/S0218271822501115"],"URL":"https:\/\/doi.org\/10.1142\/s0218271822501115","relation":{},"ISSN":["0218-2718","1793-6594"],"issn-type":[{"value":"0218-2718","type":"print"},{"value":"1793-6594","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,10,8]]},"article-number":"2250111"}}