3 papers
nucl-th2025
Bounds on the minimum sound speed above neutron star densities
Dake Zhou
We show that the existence of massive neutron stars and asymptotic freedom of QCD place robust upper bounds on the lowest sound speed of the ultra-dense matter unattainable in neut…
nucl-th2024
Bayesian evidence for two peaks in the sound speed in cold dense QCD
Dake Zhou
I show that in addition to the well-known peak inside massive neutron stars, the sound speed in cold dense QCD matter likely exhibits another peak above neutron star densities befo…
astro-ph.HE2024
Reexamining constraints on neutron star properties from perturbative QCD
Dake Zhou
The implications of perturbative QCD (pQCD) calculations on neutron stars are carefully examined. While pQCD calculations above baryon chemical potentials GeV demon…