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arXiv 1709.02774hep-phastro-ph.HEnucl-th
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Nambu-Jona-Lasinio模型中强磁化夸克物质物态方程的各向异性

Anisotropy in the equation of state of strongly magnetized quark matter within the Nambu--Jona-Lasinio Model

Sidney S. Avancini, Veronica Dexheimer, Ricardo L. S. Farias, Varese S. Timóteo

摘要:

本文在Nambu-Jona-Lasinio模型下计算了零温下强磁化夸克物质的磁化强度和其他物理量。我们假设两种情况下,化学平衡的电荷中性物质存在于致密恒星的内部和零奇异性的同位旋对称的核实验中创建的物质。我们表明,磁化强度随密度振荡,但在一个更平滑的形式比以前在文献中所示。结果表明,在垂直于磁场的方向上,我们没有发现压力的非物理行为。最后,我们还分析了矢量相互作用对结果的影响。

英文摘要:

In this article, we calculate the magnetization and other thermodynamical quantities for strongly magnetized quark matter within the Nambu-Jona-Lasinio model at zero temperature. We assume two scenarios, chemically equilibrated charge neutral matter present in the interior of compact stars and zero-strangeness isospin-symmetric matter created in nuclear experiments. We show that the magnetization oscillates with density but in a much more smooth form than what was previously shown in the literature. As a consequence, we do not see the unphysical behavior in the pressure in the direction perpendicular to the magnetic field that was previously found. Finally, we also analyze the effects of a vector interaction on our results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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