TOPOLOGICAL ACTION AT A DISTANCE AND THE MAGNETIC-MOMENT OF POINT-LIKE ANYONS

被引：59

作者：

STERN, J ^{[1
]}

机构：

[1] UNIV PARIS 06,PARIS,FRANCE

来源：

PHYSICS LETTERS B | 1991年 / 265卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(91)90024-K

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In (2 + 1) dimensions, a point-like particle with no spin degree of freedom can carry its proper magnetic moment. It is shown that, for a particular value of this magnetic moment, the Maxwell-Chern-Simons electrodynamics of a system of N point-like charges exactly reduces to an effective action at a distance that is a topological invariant of particle world-lines. The resulting action differs from the standard action of ideal anyons by a velocity-dependent attractive contact term.

引用

页码：119 / 123

页数：5

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