Quark matter under strong magnetic fields in the Nambu–Jona-Lasinio model

2008/11/20 by Débora P. Menezes, D. P. Menezes, M. Benghi Pinto +7 · 4 citations
Physics and Astronomy · #Condensed matter physics #Equation of state #High-Energy Particle Collisions Research #Magnetar #Magnetic field #Particle physics #Physics #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Quark #Quark star #Strange matter #astro-ph #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevc.79.035807

published as Phys.Rev.C79:035807,2009 · 13 pages, 9 figures

arxiv created 2008/11/20 · openalex publication_date 2009/03/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In the present work we use the large-N_c approximation to investigate quark matter described by the SU(2) Nambu--Jona-Lasinio model subject to a strong magnetic field. The Landau levels are filled in such a way that usual kinks appear in the effective mass and other related quantities. \ensuremathβ equilibrium is also considered and the macroscopic properties of a magnetar described by this quark matter is obtained. Our study shows that the magnetar masses and radii are larger if the magnetic field increases but only very large fields (\ensuremath\geqslant10¹⁸ G) affect the equation of state in a non-negligible way.

Citations

• Hydrostatic Equilibrium of Hypothetical Quark Stars
• Nonlocal SU(3) chiral quark models at finite temperature: The role of the Polyakov loop
• Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. I
• Chiral transition in a strong magnetic background
• Nonstrange hybrid compact stars with color superconducting matter
• On Gauge Invariance and Vacuum Polarization
• Cosmic separation of phases
• Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. II
• Collapsed Nuclei

Cited by

• Anisotropy in the equation of state of strongly magnetized quark matter within the Nambu–Jona-Lasinio model
• Landau quantization and spin polarization of cold magnetized quark matter
• Color neutral two-flavor superconducting phase of cold and dense quark matter in the presence of constant magnetic fields
• Quark matter subject to strong magnetic fields: phase diagram and applications

Related

• Vacuum structure and chiral symmetry breaking in strong magnetic fields for hot and dense quark matter
• Finite volume effects of the Nambu-Jona-Lasinio model with the running coupling constant
• Exploring Anisotropic Effects in Magnetized Quark Matter
• Cold and Dense Matter in a Magnetic Field
• Cold magnetized quark matter phase diagram within a generalized SU(2) NJL model