Can the Universe escape eternal acceleration?

被引：55

作者：

Barrow, JD

Bean, R

Magueijo, J

机构：

[1] Univ Cambridge, Ctr Math Sci, DAMTP, Cambridge CB3 OWA, England

[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2000年 / 316卷 / 03期

关键词：

cosmology; theory;

D O I：

10.1046/j.1365-8711.2000.03778.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new interpretation of recent observations suggesting that the expansion of the Universe has recently started to accelerate. A cosmological model with a quintessence field driven by a potential motivated by M-theory is used to study the energy density and equation of state for the Universe. We find that late-time acceleration does not have to lead to the usual predictions of perpetual acceleration. The model allows another broad class of scenarios in which today's acceleration is a transient phenomenon, which is succeeded by a return to matter domination and decelerating expansion.

引用

页码：L41 / L44

页数：4

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