Can the Hubble tension be resolved by bulk viscosity?

TL;DR

This paper proposes that cosmic bulk viscosity can reconcile the differing measurements of the Hubble constant from early and late universe observations.

Contribution

It demonstrates that the bulk viscosity estimated in prior work is enough to resolve the Hubble tension.

Findings

Bulk viscosity can bridge the Hubble tension.

Estimated viscosity aligns with observational data.

Supports viscosity as a solution to cosmological discrepancies.

Abstract

We show that the cosmic bulk viscosity estimated in our previous works is sufficient to bridge the $H_0$ value inferred from observations of the early universe with the value inferred from the local (late) universe.