The Importance of the Pressure Anisotropy Induced by Strong Magnetic Fields on Neutron Star Physics
The Importance of the Pressure Anisotropy Induced by Strong Magnetic Fields on Neutron Star Physics
复制标题
强磁场引起的压力各向异性对中子星物理的重要性
DOI：
10.1088/1742-6596/2536/1/012007
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Hackebill, Aric
中科院分区：
文献类型：
--
作者：
Ferrer, Efrain J;Hackebill, Aric
在本文中，我们讨论了一些详细的压力如何确定从半经典的统计平均的能量动量张量在均匀的背景磁场的存在下，是各向异性的不同的压力产生沿着和垂直于磁场方向。因此，我们分析了这一结果如何影响致密磁化系统的两个重要特征：（i）存在磁场时的强子-夸克相变，（ii）致密磁化系统中的声速行为。考虑到预计在中子星内部存在大磁场，我们将强调压力各向异性在这些紧凑天体的物理学中所起的作用。
In this paper we discuss in some detail how the pressures determined from semi-classical statistical averaging of the energy momentum tensor in the presence of a uniform background magnetic field are anisotropic with different pressures arising along and perpendicular to the magnetic field direction. Hence, we analyze how this result can affect two important characteristics of dense magnetized systems:(i) The hadron-quark phase transition in the presence of a magnetic field,(ii) The behavior of the speed of sound in dense magnetized systems. Taking into account that large magnetic fields are expected to be present in the interior of neutron stars, we will stress the role the pressure anisotropy plays in the physics of these compact astronomical objects.