TY  - JOUR
AU  - Adolf, P.
AU  - Hirsch, M.
AU  - Krieg, S.
AU  - Pas, H.
AU  - Tabet, M.
PY  - 2024
DA  - 2024//
TI  - Fitting the DESI BAO data with dark energy driven by the Cohen-Kaplan-Nelson bound
T2  - J. Cosmol. Astropart. Phys.
JO  - Journal of Cosmology and Astroparticle Physics
SP  - 048
EP  - 18pp
VL  - 08
IS  - 8
PB  - IOP Publishing Ltd
KW  - dark energy theory
KW  - dark energy experiments
KW  - Frequentist statistics
KW  - baryon acoustic oscillations
AB  - Gravity 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 Lambda CDM model and can compete with other models of time-dependent dark energy that have been studied so far.
SN  - 1475-7516
UR  - https://arxiv.org/abs/2406.09964
UR  - https://doi.org/10.1088/1475-7516/2024/08/048
DO  - 10.1088/1475-7516/2024/08/048
LA  - English
N1  - WOS:001319332300014
ID  - Adolf_etal2024
ER  -