GRAVITY AND THE DOMAIN-WALL PROBLEM

被引：91

作者：

RAI, B

SENJANOVIC, G

机构：

[1] International Centre for Theoretical Physics

来源：

PHYSICAL REVIEW D | 1994年 / 49卷 / 06期

关键词：

D O I：

10.1103/PhysRevD.49.2729

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It is well known that the spontaneous breaking of discrete symmetries may lead to a conflict with big-bang cosmology. This is due to the formation of domain walls which give an unacceptable contribution to the energy density of the Universe. On the other hand it is expected that gravity breaks global symmetries explicitly. In this work we propose that this could provide a natural solution to the domain-wall problem.

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页码：2729 / 2733

页数：5

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