%0 Journal Article
%T Topological Properties of Spatial Coherence Function
%A REN Ji-Rong
%A ZHU Tao
%A DUAN Yi-Shi
%A <br>任继荣
%A 朱涛
%A 段一士
%J 中国物理快报
%D 2008
%I 
%X The topological properties of the spatial coherence function are investigated rigorously. The phase singular structures (coherence vortices) of coherence function can be naturally deduced from the topological current, which is an abstract mathematical object studied previously. We find that coherencevortices are characterized by the Hopf index and Brouwer degree intopology. The coherence flux quantization and the linking of the closed coherence vortices are also studied from the topological properties of the spatial coherence function.
%K 03
%K 65
%K Vf
%K 42
%K 25
%K Kb
%K 02
%K 40
%K Xx<br>空间相干函数
%K 拓扑性
%K 相结构
%K 量子化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=FF2F7127C5BD611BB8DD2D6B6AC59A77&yid=67289AFF6305E306&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=4C2B9916B58305BE&eid=0918129209B14F3E&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0