DILATON CONTRIBUTIONS TO THE COSMIC GRAVITATIONAL-WAVE BACKGROUND

被引：108

作者：

GASPERINI, M ^{[1
]}

GIOVANNINI, M ^{[1
]}

机构：

[1] IST NAZL FIS NUCL,TURIN,ITALY

来源：

PHYSICAL REVIEW D | 1993年 / 47卷 / 04期

关键词：

D O I：

10.1103/PhysRevD.47.1519

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider the cosmological amplification of a metric perturbation propagating in a higher-dimensional Brans-Dicke background, including a nontrivial dilaton evolution. We discuss the properties of the spectral energy density of the produced gravitons (as well as of the associated squeezing parameter), and we show that the present observational bounds on the graviton spectrum provide significant information on the dynamical evolution of the early Universe.

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页码：1519 / 1528

页数：10

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