INSTANTON INDUCED PERIODIC POTENTIALS IN NONLINEAR SIGMA-MODELS

被引：10

作者：

OVRUT, BA

THOMAS, S

机构：

[1] Department of Physics, University of Pennsylvania, Philadelphia

来源：

PHYSICS LETTERS B | 1991年 / 267卷 / 02期

关键词：

D O I：

10.1016/0370-2693(91)91252-Q

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is shown that topologically stable instantons in the theory of a free antisymmetric tensor in four euclidian dimensions induce a cosine potential in the effective lagrangian of the associated scalar mean field. It is then proven that related stable instantons can exist in a certain class of non-linear sigma models and that such theories have a natural, topologically induced cosine potential.

引用

页码：227 / 232

页数：6

共 18 条

[1] WORMHOLES AND GLOBAL SYMMETRIES [J].