Thermal Vacuum Cosmology Explains Hubble Tension

Abstract

It is argued that the previously proposed modification of the standard (flat) inflationary $ΛCDM$ model in which cosmological constant is replaced by thermal energy of expanding vacum, characterized by the Gibbons-Hawking temperature, explains the origin of notorious ``Hubble tension''.

Figures (2)

• Figure 1: Plot of the $f(z)$ curves: for $\Lambda$CDM model with $\Omega_{\Lambda} =0.7$, TVM with $\Omega_{TV} = 0.42$. The dots mark minima at $z_{ac} \simeq 0.7$.
• Figure 2: Plot of the "running Hubble constant " $\hat{H}_0(z)$ for $\Omega_{TV} = 0.42 , \Omega_{\Lambda} =0.7$ , and $H_0 = 74$ .