全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
Physics  2012 

Growth of covariant perturbations in the contracting phase of a bouncing universe

DOI: 10.1103/PhysRevD.86.123522

Full-Text   Cite this paper   Add to My Lib

Abstract:

In this paper we examine the validity of the linear perturbation theory near a bounce in the covariant analysis. Some linearity parameters are defined to set up conditions for a linear theory. Linear evolution of density perturbation and gravitational waves have been computed previously. We have calculated the vector and scalar induced parts of the shear tensor. For radiationlike and dustlike single fluid dominated collapsing Friedmann-Lemaitre-Robertson-Walker background it is shown that the linearity conditions are not satisfied near a bounce.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133