Neutron Star Interior Unveiled: Lattice QCD Breaks Sound Speed Barrier
2025-03-07
For the first time, researchers used lattice quantum chromodynamics (LQCD) to study neutron star interiors, obtaining a new upper bound for the speed of sound within the star and a better understanding of the relationship between pressure, temperature, and other properties. This research overcame challenges in solving quantum chromodynamics equations under strong interactions. By introducing isospin to simplify calculations, the team concluded that the speed of sound in neutron stars may exceed c/√3, opening new avenues for further research into neutron star properties.
(phys.org)