To make sense of the Hubble tension, it is essential to have a simple (in terms of ideas), convincing solution. In a new paper, we present a new microscopic Hot NEDE model of the dark sector based on well-known fundamental principles, gauge symmetry, and spontaneous symmetry breaking, which resolves the Hubble tension. We also discuss how this solution can be further tested with future precision data.

Profile likelihood curves for the model from our paper can be seen below.  

Work in collaboration with Mathias Garny, Florian Niedermann and Henrique Rubira.

The paper is on arXiv: https://arxiv.org/abs/2508.03795.