Entropy bounds and dark energy

被引：737

作者：

Hsu, SDH ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

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

[3] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

来源：

PHYSICS LETTERS B | 2004年 / 594卷 / 1-2期

关键词：

D O I：

10.1016/j.physletb.2004.05.020

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Entropy bounds render quantum corrections to the cosmological constant A finite. Under certain assumptions, the natural value of A is of order the observed dark energy density similar to10(-10) eV(4), thereby resolving the cosmological constant problem. We note that the dark energy equation of state in these scenarios is w = p/rho = 0 over cosmological distances, and is strongly disfavored by observational data. Alternatively, A in these scenarios might account for the diffuse dark matter component of the cosmological energy density. (C) 2004 Published by Elsevier B.V.

引用

页码：13 / 16

页数：4

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