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What if gravity becomes really repulsive in the future?

dc.contributor.authorAlbarran, Imanol
dc.contributor.authorBouhmadi López, Mariam ORCID
dc.contributor.authorMorais, João
dc.date.accessioned2018-11-15T11:04:34Z
dc.date.available2018-11-15T11:04:34Z
dc.date.issued2018-03-24
dc.identifier.citationEuropean Physical Journal C 78(3) : (2018) // Article ID 260es_ES
dc.identifier.issn1434-6044
dc.identifier.issn1434-6052
dc.identifier.urihttp://hdl.handle.net/10810/29665
dc.description.abstractThe current acceleration of the Universe is one of themost puzzling issues in theoretical physics nowadays. We are far from giving an answer in this letter to the question of its nature. Yet, with the observations we have at hand, we analyse the different patterns that the gravitational potential can show in the future. Surprisingly, gravity not only can get weaker in the near future, it can even become repulsive; or equivalently, the gravitational potential may become negative. We show this remark by using one of the simplest phenomenological model we can imagine for dark energy. We have also reviewed the statefinder approach of these models. For completeness, we have also showed the behaviour of the density contrast of dark matter and dark energy for these simple (yet illustrative models). Our results are displayed and we see how they shall evolve in the future.es_ES
dc.description.sponsorshipThe work of IA was supported by a Santander-Totta fellowship "Bolsas de Investigacao Faculdade de Ciencias (UBI) Santander Totta". The work of MBL is supported by the Basque Foundation of Science IKERBASQUE. JM is thankful to UPV/EHU for a PhD fellowship. MBL and JM acknowledge financial support from project FIS2017-85076-P (MINECO/AEI/FEDER, UE), and Basque Government Grant no. IT956-16. This research work is supported by the Grant UID/MAT/00212/2013. This paper is based upon work from COST action CA15117 (CANTATA), supported by COST (European Cooperation in Science and Technology).es_ES
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relationinfo:eu-repo/grantAgreement/MINECO/ FIS2017-85076-Pes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjectdark energy surveyes_ES
dc.subjectgrowth-ratees_ES
dc.subjectuniversees_ES
dc.subjectstatefinderes_ES
dc.titleWhat if gravity becomes really repulsive in the future?es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holderThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecomm ons.org/licenses/by/4.0/ ), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.es_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttps://link.springer.com/article/10.1140%2Fepjc%2Fs10052-018-5728-xes_ES
dc.identifier.doi10.1140/epjc/s10052-018-5728-x
dc.departamentoesFísica teórica e historia de la cienciaes_ES
dc.departamentoeuFisika teorikoa eta zientziaren historiaes_ES


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This article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecomm ons.org/licenses/by/4.0/ ), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Except where otherwise noted, this item's license is described as This article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecomm ons.org/licenses/by/4.0/ ), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.