Spontaneous Magnetization through Non-Abelian Vortex Formation in Rotating Dense Quark Matter
Spontaneous Magnetization through Non-Abelian Vortex Formation in Rotating Dense Quark Matter
复制标题
旋转稠密夸克物质中非阿贝尔涡旋形成的自发磁化
DOI：
10.1103/physrevd.86.085018
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
Muneto Nitta
中科院分区：
文献类型：
--
作者：
Walter Vinci;Mattia Cipriani;Muneto Nitta
当高密度QCD彩色超导体旋转时，不可避免地会沿旋转轴产生超流体涡流。在渐进大化学势实现的色味锁定相中，出现了携带超流体循环和色磁通量的非阿贝尔涡旋。一系列解具有以南部-戈德斯通模式为特征的简并性，与涡旋附近自发破缺的色味锁定对称性相关。在本文中，我们研究了非阿贝尔涡旋的电磁耦合，发现简并性随着感应有效势的消除而消失。我们获得了一个稳定涡旋解和一系列亚稳态涡旋解，它们除了携带彩色磁通量之外还携带普通磁通量。我们通过量子隧道效应讨论亚稳态涡旋的量子力学衰变，并将有效势与其他已知势、量子机械感应势和奇异夸克质量感应势进行比较。
When a color superconductor of high density QCD is rotating, superfluid vortices are inevitably created along the rotation axis. In the color-flavor locked phase realized at the asymptotically large chemical potential, there appear non-Abelian vortices carrying both circulations of superfluid and color magnetic fluxes. A family of solutions has a degeneracy characterized by the Nambu-Goldstone modes, associated with the color-flavor locked symmetry spontaneously broken in the vicinity of the vortex. In this paper, we study electromagnetic coupling of the non-Abelian vortices and find that the degeneracy is removed with the induced effective potential. We obtain one stable vortex solution and a family of metastable vortex solutions, both of which carry ordinary magnetic fluxes in addition to color magnetic fluxes. We discuss quantum mechanical decay of the metastable vortices by quantum tunneling and compare the effective potential with the other known potentials, the quantum mechanically induced potential and the potential induced by the strange quark mass.