Lepton-rich cold QCD matter in protoneutron stars

Abstract

We investigate protoneutron star matter using the state-of-the-art perturbative equation of state for cold and dense QCD in the presence of a fixed lepton fraction in which both electrons and neutrinos are included. Besides computing the modifications in the equation of state due to the presence of trapped neutrinos, we show that stable strange quark matter has a more restricted parameter space. We also study the possibility of nucleation of unpaired quark matter in the core of protoneutron stars by matching the lepton-rich QCD pressure onto a hadronic equation of state, namely TM1 with trapped neutrinos. Using the inherent dependence of perturbative QCD on the renormalization scale parameter, we provide a measure of the uncertainty in the observables we compute.

9 pages, 9 figures

References in corpus (13)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Cold Quark Matter
• Neutron matter at next-to-next-to-next-to-leading order in chiral effective field theory
• Signals of the QCD phase transition in core-collapse supernovae
• Quark matter in compact stars?
• Tables of Hyperonic Matter Equation of State for Core-Collapse Supernovae
• Droplets in the cold and dense linear sigma model with quarks
• Phase diagram and surface tension in the three-flavor Polyakov-quark-meson model
• The conversion of Neutron star to Strange star : A two step process
• A new possible quark-hadron mixed phase in protoneutron stars
• On high-order perturbative calculations at finite density

Cited by in corpus (5)

• Surface tension of dense matter at the chiral phase transition
• The Deconfinement Phase Transition in Proto-Neutron-Star Matter
• Phenomenological QCD equations of state for neutron star dynamics: Nuclear-2SC continuity and evolving effective couplings
• Medium effect on anisotropic surface tension of magnetized quark matter
• Interacting quark matter effects on the structure of compact stars