Quasiparticle Modeling of Strongly Magnetized Strange Quark Systems

Abstract

We examine spin-polarized Strange Quark Matter and the complex structure of Strange Quark Stars in the presence of a strong magnetic field. Our framework uses a quasiparticle model, enhanced by a QCD-informed effective quark mass dependent on both chemical potential value and magnetic field strength. The resulting Equation of State yields an energy per baryon below the iron limit, supporting the hypothesis that the actual ground state of matter is a strange matter. By solving the Tolman–Oppenheimer–Volkoff expressions, we find that the maximum stellar mass decreases with the degree of spin polarization, reaching as high as \(2.35~M_\odot \) with a related radius 12.33 km. Furthermore, the model’s predictions for mass, radius, and surface redshift are in excellent conformance to observational limitations for the massive pulsar PSR J0952-0607. These results highlight the crucial role of quasiparticle medium effects and strong magnetic fields in describing dense matter. Published by the Jagiellonian University 2026 authors