Instabilities and the null energy condition

被引：49

作者：

Buniy, RV ^{[1
]}

Hsu, SDH ^{[1
]}

机构：

[1] Univ Oregon, Inst Theoret Sci, Eugene, OR 97403 USA

来源：

PHYSICS LETTERS B | 2006年 / 632卷 / 04期

关键词：

D O I：

10.1016/j.physletb.2005.10.075

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that violation of the null energy condition implies instability in a broad class of models, including gauge theories with scalar and fermionic matter as well as any perfect fluid. When applied to the dark energy, our results imply that w = p/rho is unlikely to be less than -1. (c) 2005 Elsevier B.V. All rights reserved.

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页码：543 / 546

页数：4

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