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arXiv 0903.4450astro-ph.HEhep-phnucl-th
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中子星中的拓扑流:反冲、旋进、环向场和磁螺旋度

Topological Currents in Neutron Stars: Kicks, Precession, Toroidal Fields, and Magnetic Helicity

James Charbonneau, Ariel Zhitnitsky

摘要:

高密度QCD中的反常效应是惊人的。我们考虑直接应用这些影响之一,即拓扑电流,对物理学的中子星。拓扑电流所需的所有元素都存在于中子星中:简并物质、大磁场和P宇称破坏过程。这些条件导致产生能够携带动量和感应磁场的矢量电流。我们估计这些电流的大小为许多代表性的状态的致密物质的中子星,并认为它们可能是负责大自行的中子星(踢),环形磁场和有限的磁螺旋度所需的极向场的稳定性,和解决II型超导性和进动之间的冲突。虽然这些观测效应看起来不相关,但它们可能起源于相同的物理学--它们都是源于宇称破坏产生的拓扑电流的P奇现象。

英文摘要:

The effects of anomalies in high density QCD are striking. We consider a direct application of one of these effects, namely topological currents, on the physics of neutron stars. All the elements required for topological currents are present in neutron stars: degenerate matter, large magnetic fields, and P-parity violating processes. These conditions lead to the creation of vector currents capable of carrying momentum and inducing magnetic fields. We estimate the size of these currents for many representative states of dense matter in the neutron star and argue that they could be responsible for the large proper motion of neutron stars (kicks), the toroidal magnetic field and finite magnetic helicity needed for stability of the poloidal field, and the resolution of the conflict between type-II superconductivity and precession. Though these observational effects appear unrelated, they likely originate from the same physics -- they are all P-odd phenomena that stem from a topological current generated by parity violation.

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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