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arXiv 0711.0975astro-ph
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高密度磁化物质中的各向异性压力

Anisotropic Pressures in Very Dense Magnetized Matter

A. Perez Martinez, H. Perez Rojas, H. Mosquera Cuesta

摘要:

讨论了量子系统中由于外加磁场引起的空间对称性破缺所引起的各向异性压力问题。考虑了外场的能量守恒和动量守恒以及在量子统计中提供边界条件的系统的作用。本文证明了在朗道基态中,正负电子系统的平均横动量为零,这意味着系统的横压为零。对中子情况和奇异夸克物质(SQM)在$β$ -平衡中的情况也作了简要的讨论.本文还讨论了外场中的热力学关系以及量子相对论介质中应力张量的形式。简要讨论了铁磁对称性破缺。

英文摘要:

The problem of anisotropic pressures arising as a consequence of the spatial symmetry breaking introduced by an external magnetic field in quantum systems is discussed. The role of the conservation of energy and momentum of external fields as well as of systems providing boundary conditions in quantum statistics is considered. The vanishing of the average transverse momentum for an electron-positron system in its Landau ground state is shown, which means the vanishing of its transverse pressure. The situation for neutron case and Strange Quark Matter (SQM) in $β$-equilibrium is also briefly discussed. Thermodynamical relations in external fields as well as the form of the stress tensor in a quantum relativistic medium are also discussed. The ferromagnetic symmetry breaking is briefly discussed.

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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