Inflation from a tachyon fluid?

被引：221

作者：

Fairbairn, M ^{[1
]}

Tytgat, MHG ^{[1
]}

机构：

[1] Free Univ Brussels, Serv Phys Theor, B-1050 Brussels, Belgium

来源：

PHYSICS LETTERS B | 2002年 / 546卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(02)02638-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Motivated by recent works of Sen [hep-th/0203211, hep-th/0203265] and Gibbons [hep-th/0204008], we study the evolution of a flat and homogeneous universe dominated by tachyon matter. In particular, we analyze the necessary conditions for inflation in the early roll of a single tachyon field. Comparison with string theory reveals that the potential is too steep to explain the fluctuations in the CMBR. We suggest a scenario based on the simultaneous decay of many branes and comment on the issue of reheating of the universe after tachyon rolling. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 7

页数：7

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