强磁化色超导中的磁电效应
Magnetoelectric Effect in Strongly Magnetized Color Superconductivity
摘要：
研究了强磁场对三色超导介质电极化的强度的影响。我们发现这种强磁化介质的磁化率是高度各向异性的。在横向于外加磁场的方向上，磁化率减小到真空的磁化率，而在纵向上，磁化率取决于磁场并随磁场减小。这种行为的本质与磁场对库珀对相干长度的依赖性有关，相干长度起电偶极子长度的作用。场对电极化的强度的依赖性被解释为冷密夸克物质中磁电效应的实现。
英文摘要：
The effect of a strong magnetic field on the electric polarization of a three-flavor color superconducting medium is investigated. We found that the electric susceptibility of this strongly magnetized medium is highly anisotropic. In the direction transverse to the applied magnetic field the susceptibility reduces to that of the vacuum, while in the longitudinal direction it depends on the magnetic field and decreases with it. The nature of this behavior is associated with the field's dependence of the Cooper pairs' coherence length, which plays the role of the electric dipole length. The field's dependence of the electric polarization is interpreted as the realization of the magnetoelectric effect in cold-dense quark matter.
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