Topological Aspects of Triplet Superconductors  

作　　者：REN Ji-Rong XU Dong-Hui ZHANG Xin-Hui LI Ran 

机构地区：[1]Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000, China

出　　处：《Communications in Theoretical Physics》2007年第5期944-948,共5页理论物理通讯（英文版）

基　　金：The project supported by National Natural Science Foundation of China under Grant No. 10275030 Acknowledgments 0ne of the authors, XU Dong-Hui, is indebted to Dr. LIU Yu-Xiao for useful discussions and help.

摘　　要：In this paper, using the Φ-mapping theory, it is shown that two kinds of topological defects, i.e., the vortex lines and the monopoles exist in the helical configuration of magnetic field in triplet superconductors. And the inner topological structure of these defects is studied. Because the knot solitons in the triplet superconductors are characterized by the Hopf invariant, we also establish a relationship between the Hopf invariant and the linking number of knots family, and reveal the inner topological structure of the Hopf invariant.

关 键 词：triplet superconductor topological defects Hopf invariant 

分 类 号：O511.4[理学—低温物理]