Fitting the DESI BAO data with dark energy driven by the Cohen-Kaplan-Nelson bound

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dc.contributor.authorAdolf, Patrick
dc.contributor.authorHirsch, Martin
dc.contributor.authorKrieg, Sara
dc.contributor.authorPäs, Heinrich
dc.contributor.authorTabet, Mustafa
dc.date.accessioned2025-09-25T05:47:29Z
dc.date.available2025-09-25T05:47:29Z
dc.date.issued2024-08-28
dc.description.abstractGravity constrains the range of validity of quantum field theory. As has been pointed out by Cohen, Kaplan, and Nelson (CKN), such effects lead to interdependent ultraviolet (UV) and infrared (IR) cutoffs that may stabilize the dark energy of the universe against quantum corrections, if the IR cutoff is set by the Hubble horizon. As a consequence of the cosmic expansion, this argument implies a time-dependent dark energy density. In this paper we confront this idea with recent data from DESI BAO, Hubble and supernova measurements. We find that the CKN model provides a better fit to the data than the ΛCDM model and can compete with other models of time-dependent dark energy that have been studied so far.en
dc.identifier.urihttp://hdl.handle.net/2003/43990
dc.language.isoen
dc.relation.ispartofseriesJournal of cosmology and astroparticle physics; 2024(8)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectDark energy theoryen
dc.subjectDark energy experimentsen
dc.subjectFrequentist statisticsen
dc.subjectBaryon acoustic oscillationsen
dc.subject.ddc530
dc.titleFitting the DESI BAO data with dark energy driven by the Cohen-Kaplan-Nelson bounden
dc.typeText
dc.type.publicationtypeArticle
dcterms.accessRightsopen access
eldorado.dnb.deposittrue
eldorado.doi.registerfalse
eldorado.secondarypublicationtrue
eldorado.secondarypublication.primarycitationAdolf, P., Hirsch, M., Krieg, S., Päs, H., & Tabet, M. (2024). Fitting the DESI BAO data with dark energy driven by the Cohen-Kaplan-Nelson bound. Journal of Cosmology and Astroparticle Physics, 2024(8), Article 048. https://doi.org/10.1088/1475-7516/2024/08/048
eldorado.secondarypublication.primaryidentifierhttps://doi.org/10.1088/1475-7516/2024/08/048

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