Easing the Hubble constant tension?

TL;DR

This paper explores a modified Friedmann equation derived from a $W_3$ algebra model, which could potentially resolve the discrepancy between Hubble constant measurements from CMB and supernova observations.

Contribution

It introduces a novel theoretical model based on $W_3$ algebra to address the Hubble tension, linking algebraic structures to cosmological dynamics.

Findings

Modified Friedmann equation can reconcile different Hubble constant measurements

The $W_3$ algebra model provides a new theoretical framework for cosmology

Potential explanation for the Hubble tension through algebraic modifications

Abstract

We show how a modified Friedmann equation, originating from a model of the universe built from a certain $W_3$ algebra, has the potential to explain the difference between the Hubble constants extracted from CMB data and from supernova data.