(n+1)-dimensional Lorentzian wormholes in an expanding cosmological background

被引：0
|
作者：
E. Ebrahimi
N. Riazi
机构：
[1] Shiraz University,Department and Biruni Observatory
来源：
Astrophysics and Space Science | 2009年 / 321卷
关键词：
Wormholes; Energy conditions; Expanding universe;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We discuss (n+1)-dimensional dynamical wormholes in an evolving cosmological background with a throat expanding with time. These solutions are examined in the general relativity framework. A linear relation between diagonal elements of an anisotropic energy-momentum tensor is used to obtain the solutions. The energy-momentum tensor elements approach the vacuum case when we are far from the central object for one class of solutions. Finally, we discuss the energy-momentum tensor which supports this geometry, taking into account the energy conditions.
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收藏
页码：217 / 223
页数：6
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