Cosmological imprint of an energy component with general equation of state

被引：3209

作者：

Caldwell, RR ^{[1
]}

Dave, R ^{[1
]}

Steinhardt, PJ ^{[1
]}

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.80.1582

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We examine the possibility that a significant component of the energy density of the Universe has an equation of state different from that of matter, radiation, or cosmological constant (Lambda). An example is a cosmic scalar field evolving in a potential, but our treatment is more general. Including this component alters cosmic evolution in a way that fits current observations well. Unlike Lambda, it evolves dynamically and develops fluctuations, leaving a distinctive imprint on the microwave background anisotropy and mass power spectrum.

引用

页码：1582 / 1585

页数：4

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