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Stability of superfluid vortices in dense quark matter

机译:致密夸克超流涡流的稳定性

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Superfluid vortices in the color-flavor-locked (CFL) phase of dense quark matter are known to be energetically disfavored relative to well-separated triplets of so-called semi-superfluid color flux tubes. However, the short-range interaction (metastable versus unstable) has not been established. In this paper we perform numerical calculations using the effective theory of the condensate field, mapping the regions in the parameter space of coupling constants where the vortices are metastable versus unstable. For the case of zero-gauge coupling we analytically identify a candidate for the unstable mode and show that it agrees well with the results of the numerical calculations. We find that in the region of the parameter space that seems likely to correspond to real-world CFL quark matter the vortices are unstable, indicating that if such matter exists in neutron star cores it is very likely to contain semi-superfluid color flux tubes rather than superfluid vortices.
机译:已知致密夸克致密夸克物质的色彩锁定(CFL)相的超流体涡流,相对于所谓的半超级荧光彩色通量管的良好分离的三元组是能量不足的。 但是,尚未建立短程交互(亚稳态与不稳定)。 在本文中,我们使用冷凝物场的有效理论进行数值计算,将涡流的耦合常数的参数空间中的区域进行映射,其中叶片是不稳定的。 对于零仪耦合的情况,我们分析了识别不稳定模式的候选者,并表明它与数值计算的结果很好。 我们发现,在似乎对应于真实世界的CFL夸克的参数空间区域中,涡流是不稳定的,表明如果中子星核心存在,则很可能含有半超级荧光彩色磁通管 比超级流体涡旋。

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