Gravitational waves in non-singular string cosmologies

被引：24

作者：

Cartier, C ^{[1
]}

Copeland, EJ

Gasperini, M

机构：

[1] Univ Sussex, Ctr Theoret Phys, Brighton BN1 9QJ, E Sussex, England

[2] Univ Bari, Dipartmento Fis, I-70126 Bari, Italy

来源：

NUCLEAR PHYSICS B | 2001年 / 607卷 / 1-2期

关键词：

D O I：

10.1016/S0550-3213(01)00182-1

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the evolution of tensor metric fluctuations in a class of non-singular models based on the string effective action, by including in the perturbation equation the higher-derivative and loop corrections needed to regularise the background solutions. We discuss the effects of such higher-order corrections on the final graviton spectrum, and we compare the results of analytical and numerical computations. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：406 / 428

页数：23

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