VISCOELASTIC EFFECTS IN COSMOLOGICAL EXPANSION

被引：10

作者：

ZAKARI, M

JOU, D

机构：

[1] Departament de Física (Física Estadística), Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia

来源：

PHYSICS LETTERS A | 1993年 / 175卷 / 06期

关键词：

D O I：

10.1016/0375-9601(93)90989-D

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

When viscous effects are considered in the analysis of relativistic systems, viscoelastic effects should be included in order to avoid a propagation of viscous signals with infinite speed. In this paper, the influence of such viscoelastic effects on the evolution of a Friedmann-Robertson-Walker universe is studied. In the limit of strong viscoelastic effects the dependence of the scale factor R with t is given by different exponents than in the situation when bulk viscous pressure is completely ignored.

引用

页码：395 / 396

页数：2

共 16 条

[1] STRING-DRIVEN INFLATIONARY AND DEFLATIONARY COSMOLOGICAL MODELS [J].