Quark Stars in f (T, Τ ) Gravity: Structure, Stability, and Observational Constraints
Quark stars — hypothetical compact stars made entirely of deconfined quark matter — offer a clean testing ground for gravity beyond general relativity. We study their structure in f(T, Τ ) gravity, a teleparallel theory in which torsion is coupled directly to the trace of the energy--momentum tensor through a sin...