超导邻近效应下拓扑半金属及相关体系的非阿贝尔拓扑超导体
Non-Abelian toplogical superconductors from topological semimetals and related systems under superconducting proximity effect
摘要：
非阿贝尔拓扑超导体的特征是量子化涡旋中束缚的{零能量}马约拉纳费米子的存在。这是由{ \em odd} Chern数表征的非平凡体拓扑的结果。结果表明，在具有一个能带交叉点的拓扑半金属中，所有带隙超导体都是非阿贝尔超导体。这样一个属性是广义的相关，但更一般的系统，这将是有用的，在寻找非阿贝尔超导体和马约拉纳费米子。
英文摘要：
Non-Abelian toplogical superconductors are characterized by the existence of {zero-energy} Majorana fermions bound in the quantized vortices. This is a consequence of the nontrivial bulk topology characterized by an {\em odd} Chern number. It is found that in topological semimetals with a single two-bands crossing point all the gapped superconductors are non-Abelian ones. Such a property is generalized to related but more generic systems which will be useful in the search of non-Abelian superconductors and Majorana fermions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
