Instability of (1+1) de Sitter space in the presence of interacting fields

被引：2

作者：

Bander, Myron ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.82.024003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Instabilities of two dimensional (1 + 1) de Sitter space induced by interacting fields are studied. As for the case of flat Minkowski space, several interacting fermion models can be translated into free boson ones and vice versa. It is found that interacting fermion theories do not lead to any instabilities, while the interacting bosonic sine-Gordon model does lead to a breakdown of de Sitter symmetry and to the vanishing of the vacuum expectation value of the S matrix.

引用

页数：5

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