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Gansukh, Tumurtushaa
순수물리이론 연구단
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The viable f(G) gravity models via reconstruction from the observations

DC Field Value Language
dc.contributor.authorSeokcheon Lee-
dc.contributor.authorGansukh Tumurtushaa-
dc.date.accessioned2020-12-22T03:00:18Z-
dc.date.accessioned2020-12-22T03:00:18Z-
dc.date.available2020-12-22T03:00:18Z-
dc.date.available2020-12-22T03:00:18Z-
dc.date.created2020-07-22-
dc.date.issued2020-06-
dc.identifier.issn1475-7516-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/7815-
dc.description.abstract© 2020 IOP Publishing Ltd and Sissa Medialab. We reconstruct the viable f(G) gravity models from the observations and provide the analytic solutions that well describe our numerical results. In order to avoid unphysical challenges that occur during the numerical reconstruction, we generalize f(G) models into f(GA), which is the simple extension of f(G) models with the introduction of a constant A parameter. We employ several observational data together with the stability condition, which reads d2f/dG2>0 and must be satisfied in the late-time evolution of the universe, to give proper initial conditions for solving the perturbation equation. As a result, we obtain the analytic functions that match the numerical solutions. Furthermore, it might be interesting if one can find the physical origin of those analytic solutions and its cosmological implications-
dc.description.uri1-
dc.language영어-
dc.publisherIOP PUBLISHING LTD-
dc.subjectdark energy theory-
dc.subjectmodified gravity-
dc.titleThe viable f(G) gravity models via reconstruction from the observations-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000551875400045-
dc.identifier.scopusid2-s2.0-85087125911-
dc.identifier.rimsid72674-
dc.contributor.affiliatedAuthorGansukh Tumurtushaa-
dc.identifier.doi10.1088/1475-7516/2020/06/029-
dc.identifier.bibliographicCitationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, v.2020, no.6, pp.29-
dc.citation.titleJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS-
dc.citation.volume2020-
dc.citation.number6-
dc.citation.startPage29-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.subject.keywordAuthordark energy theory-
dc.subject.keywordAuthormodified gravity-
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > 1. Journal Papers (저널논문)
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