Speaker
Alexander Isayev
(Kharkov Institute of Physics and Technology)
Description
Thermodynamic properties of strange quark matter (SQM) in a
nonuniform magnetic field are studied within the phenomenological
MIT bag model under the charge neutrality and beta equilibrium
conditions, relevant to the interior of strange quark stars. The
spatial dependence of the magnetic field strength is modeled by the
dependence on the baryon chemical potential. The total energy
density, longitudinal and transverse pressures in magnetized SQM are
found as functions of the baryon chemical potential. It is clarified
that the central magnetic field strength in a strange quark star is
bound from above by the value at which the derivative of the
longitudinal pressure with respect to the baryon chemical potential
vanishes first somewhere in the interior of a star under varying the
central field. Above this upper bound, the instability along the
magnetic field is developed in magnetized SQM.
Primary author
Alexander Isayev
(Kharkov Institute of Physics and Technology)
