论文标题
冷磁化夸克物质的Landau量化和自旋极化
Landau quantization and spin polarization of cold magnetized quark matter
论文作者
论文摘要
在热力学上自一致的准二粒模型的框架中研究了在紧凑型恒星条件下各种热力学量奇怪物质的各种热力学量的磁场和密度行为。对于单个物种，较大的数字密度$ n_i $导致较大的磁场强度阈值，该磁场强度阈值与与磁场平行或反平行的所有颗粒保持一致。因此，与有限的重子密度效应相反，它降低了磁化奇异夸克物质的自旋极化，磁场效应会导致其增强。我们还计算出声速是巴属密度的函数，发现声速度显示出明显的振荡，并增加了密度。除了振荡外，类似于零磁场的情况，即声速随密度的增加而增长，并接近共形限制$ v_s^2 = 1/3 $在高密度下从下方开始。
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 $n_i$ 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 $V_s^2=1/3$ at high densities from below.
