2022/02/15 by Zhen-Yan Lu, J. Xu, Jian-Feng Xu +3
Engineering · Physics and Astronomy · #Condensed matter physics #Electron #High-Energy Particle Collisions Research #Landau quantization #Nuclear physics #Particle physics #Physics #Polarization (electrochemistry) #Pulsars and Gravitational Waves Research #Quantization (signal processing) #Quantum electrodynamics #Quark #Strange matter #Superconducting Materials and Applications #hep-ph #nucl-th
paper · pdf · doi:10.1088/1674-1137/ac5513
published as Chin.Phys.C 46 (2022) 6, 064104 · 10 pages, 7 figures; Manuscript has been accepted for publication as a Regular Article in Chinese Physics C
arxiv created 2022/02/15 · openalex publication_date 2022/02/15 · arxiv updated 2022/03/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The magnetic field and density behaviors of various thermodynamic quantities of strange quark matter under compact star conditions are investigated in the framework of the thermodynamically self-consistent quasiparticle model. For individual species, a larger number density ni leads to a larger magnetic field strength threshold that align all particles parallel or antiparallel to the magnetic field. Accordingly, in contrast to the finite baryon density effect which reduces the spin polarization of magnetized strange quark matter, the magnetic field effect leads to an enhancement of it. We also compute the sound velocity as a function of the baryon density and find the sound velocity shows an obvious oscillation with increasing density. Except for the oscillation, similar to the zero-magnetic field case that the sound velocity grows with increasing density and approaches the conformal limit Vs2=1/3 at high densities from below.