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Analysis indicates a preference for dark energy models over ΛCDM in recent DESI data, suggesting new insights.
Motivated by the recent Year-2 data release of the DESI collaboration, we update our results on time-varying dark energy models driven by the Cohen-Kaplan-Nelson bound. The previously found preference of time-dependent dark energy models compared to $Λ$CDM is further strengthend by the new data release. For our particular models, we find that this preference increases up to ≈ 2.6\,σ depending on the used supernova dataset.
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Adolf et al. (2025) studied this question.
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