标题： 竞争性颜色超导性和颜色肯德尔效应在夸克物质中 显示英文标题

标题： Competing color superconductivity and color Kondo effect in quark matter

摘要： 在体颜色超导性和重夸克杂质的局域屏蔽之间的竞争，类似于Kondo效应，导致致密夸克物质中出现丰富的现象。 我们研究这种竞争发生在超导夸克体的边缘，在这里，超导能隙和Kondo尺度在可处理的简化的模型中被动态生成。 利用精确的Bethe Ansatz方法，我们阐明了由此产生的边界物理。 我们识别出由多粒子Kondo屏蔽或未屏蔽的局部磁矩所表征的不同区域。 至关重要的是，我们还发现了一种新的中间相，其中杂质通过在超导能隙内形成的单粒子束缚态实现屏蔽。 本文提出的玩具模型突显了极端QCD环境中动态生成的体性质与边界杂质之间的复杂相互作用，为重离子碰撞和致密星体中发生的现象提供了潜在的见解。 显示英文摘要

摘要： The competition between bulk color superconductivity and the localized screening of a heavy quark impurity, analogous to the Kondo effect, leads to a rich spectrum of phenomena in dense quark matter. We investigate this competition at the edge of a superconducting quark bulk, where both the superconducting gap and the Kondo scale are dynamically generated in a tractable toy model. Utilizing the exact Bethe Ansatz method, we elucidate the resulting boundary physics. We identify distinct regimes characterized by either multi-particle Kondo screening or an unscreened local moment. Crucially, we also uncover a novel intermediate phase featuring impurity screening through a single-particle bound state formed within the superconducting gap. The toy model presented in this work highlights the complex interplay between dynamically generated bulk properties and boundary impurities in extreme QCD environments, offering potential insights into phenomena occurring in heavy-ion collisions and compact stars.