Vortices and type-I superconductivity in neutron stars

被引：27

作者：

Buckley, KBW ^{[1
]}

Metlitski, MA ^{[1
]}

Zhitnitsky, AR ^{[1
]}

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

来源：

PHYSICAL REVIEW C | 2004年 / 69卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevC.69.055803

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In a recent paper by Link, it was pointed out that the standard picture of the neutron star core, composed of a mixture of a neutron superfluid and a proton type-II superconductor, is inconsistent with observations of long period precession in isolated pulsars. In the following we will show that intervortex force between the magnetic flux tubes may be attractive, resulting in a type-I (rather than type-II) superconductor. In this case the magnetic field cannot exist in the form of magnetic flux tubes, supporting Link's observation. This behavior of the system is due to the strong interaction between the proton-neutron Cooper pairs, which was previously ignored. We also calculate the critical magnetic fields H-c and H-c2 for type-I/II superconductors. These results also support our claim of type-I superconductivity in the cores of neutron stars.

引用

页码：055803 / 1

页数：10

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