Comment on "Dynamical Dark Energy at Late Time $\Lambda$CDM"
James M. Cline
TL;DR
This paper critiques a recent claim that suggests evolving dark energy within the standard Lambda-CDM model, clarifying that the previous conclusion was based on a mathematical error.
Contribution
It identifies and corrects a mathematical mistake in a prior study claiming dark energy evolution in Lambda-CDM.
Findings
The previous claim was based on an error.
Dark energy remains consistent with a cosmological constant.
The correction clarifies the stability of Lambda-CDM.
Abstract
In arXiv:2505.18900 it was claimed that an apparent evolution of the dark energy equation of state occurs within the standard CDM cosmological model. I point out that this erroneous conclusion is due to a mathematical error.
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