Topological properties of spatial coherence function

被引：6

作者：

Ren Ji-Rong ^{[1
]}

Zhu Tao ^{[1
]}

Duan Yi-Shi ^{[1
]}

机构：

[1] Lanzhou Univ, Inst Theoret Phys, Lanzhou 730000, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 02期

关键词：

D O I：

10.1088/0256-307X/25/2/005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 coherence vortices are characterized by the Hopf index and Brouwer degree in topology. The coherence flux quantization and the linking of the closed coherence vortices are also studied from the topological properties of the spatial coherence function.

引用

页码：367 / 370

页数：4

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