Topological aspects in a two-component Bose condensed system in a neutron star  

作　　者：任继荣 郭恒 

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

出　　处：《Chinese Physics B》2009年第8期3379-3383,共5页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No 10275030);Cuiying Project of Lanzhou University (Grant No 225000-582404)

摘　　要：By making use of Duan-Ge＇s decomposition theory of gauge potential and the topological current theory proposed by Prof. Duan Yi-Shi, we study a two-component superfluid Bose condensed system, which is supposed to be realized in the interior of neutron stars in the form of the coexistence of a neutron superfluid and a protonic superconductor. We propose that this system possesses vortex lines. The topological charges of the vortex lines are characterized by the Hopf indices and the Brower degrees of C-mapping.By making use of Duan-Ge＇s decomposition theory of gauge potential and the topological current theory proposed by Prof. Duan Yi-Shi, we study a two-component superfluid Bose condensed system, which is supposed to be realized in the interior of neutron stars in the form of the coexistence of a neutron superfluid and a protonic superconductor. We propose that this system possesses vortex lines. The topological charges of the vortex lines are characterized by the Hopf indices and the Brower degrees of C-mapping.

关 键 词：neutron stars topological defects two-component Bose condensed system 

分 类 号：O512[理学—低温物理] TQ126.35[理学—物理]