论文标题
近藤效应的ABCD
ABCD of Kondo effect
论文作者
论文摘要
我们探索了临近效应,该效应包括一般对称组$ g $下的本地化杂质转换,我们称之为$ g $ -kondo效应。我们得出了一维有效模型与杂质的结合,并基于边界综合场理论方法研究了热力学特性。我们特别研究了保形固定点的杂质熵以及特定热量和易感性的低温行为。我们还根据这些结果考虑了威尔逊的比率,并提到了具有特殊组对称性的情况。
We explore the Kondo effect incorporating the localized impurity transforming under generic symmetry group $G$, that we call the $G$-Kondo effect. We derive the one-dimensional effective model coupled with the impurity, and studied the thermodynamic properties based on the boundary conformal field theory approach. We in particular study the impurity entropy at the conformal fixed point, and the low temperature behavior of the specific heat and the susceptibility. We also consider the Wilson ratio based on these results, and mention the case with exceptional group symmetry.