2003/05/31 by Andrei Kryjevski · 4 citations
Physics and Astronomy · #Atomic physics #Charge (physics) #Color superconductivity #Electric charge #Electron #Ground state #High-Energy Particle Collisions Research #Lepton #Neutrality #Neutron star #Nuclear physics #Opacity #Particle physics #Physics #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Strange matter #hep-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.68.074008
published as Phys.Rev. D68 (2003) 074008 · typos corrected, this version to appear in PRD
arxiv created 2003/10/15 · openalex publication_date 2003/10/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the issue of charge neutrality of the CFLK0 phase of dense quark matter using the low energy effective theory of high density QCD. We show that the local electric and color charge neutrality of the ground state in a homogeneous color superconducting medium follows from its dynamics. We also consider the situation of a spatially inhomogeneous medium, such as may be found in a neutron star core. We find that spatial inhomogeneity results in the generation of electric fields, and positrons and/or electrons may be present in the ground state. We estimate the concentration of charged leptons in the ground state to be ne\ensuremath∼102cm^\ensuremath-3 and consider their influence on the opacity of the medium with respect to the modified photons.