Vector interactions enlarge anisotropic surface tension of quark matter in magnetic fields, cause transverse tension to rise with B in strong fields, require moderate B for bubble formation, and slightly reduce stability.
Equation of State of a Dense and Magnetized Fermion System
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abstract
The equation of state of a system of fermions in a uniform magnetic field is obtained in terms of the thermodynamic quantities of the theory by using functional methods. It is shown that the breaking of the O(3) rotational symmetry by the magnetic field results in a pressure anisotropy, which leads to the distinction between longitudinal- and transverse-to-the-field pressures. A criterion to find the threshold field at which the asymmetric regime becomes significant is discussed. This threshold magnetic field is shown to be the same as the one required for the pure field contribution to the energy and pressures to be of the same order as the matter contribution. A graphical representation of the field-dependent anisotropic equation of state of the fermion system is given. Estimates of the upper limit for the inner magnetic field in self-bound stars, as well as in gravitationally bound stars with inhomogeneous distributions of mass and magnetic fields, are also found.
fields
hep-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Review of MFIR and MSS schemes showing the superconducting gap stays finite at high chemical potential in magnetized cold quark matter with no zero-temperature transition to normal phase.
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Anisotropic surface tension and stability of quark matter modified by the vector interaction
Vector interactions enlarge anisotropic surface tension of quark matter in magnetic fields, cause transverse tension to rise with B in strong fields, require moderate B for bubble formation, and slightly reduce stability.
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Dense and Cold Magnetized Quark Matter: A Review of Magnetic-Field-Independent Regularization and the Medium Separation Scheme
Review of MFIR and MSS schemes showing the superconducting gap stays finite at high chemical potential in magnetized cold quark matter with no zero-temperature transition to normal phase.