$f(Q,T)$ Gravity with Barrow Holographic Dark Energy and Massive Neutrinos: DESI DR2 Constraints and Implications for the Hubble Tension

Ameneh Tohidi, Amin Salehi, Muhammad Yarahmadi

We study a modification of symmetric teleparallel gravity in which the function $f(Q,T)$ is linear in the non-metricity scalar $Q$ and the trace $T$ of the energy-momentum tensor,…