中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所1978-2010年知识产出  > 期刊论文
题名: Scalar wormholes in a cosmological setting and their instability
作者: Sushkov, Sergey V. ;  Zhang, Yuan-Zhong
刊名: PHYSICAL REVIEW D
出版日期: 2008
卷号: 77, 期号:2, 页码:-
关键词: POWER-LAW INFLATION ;  GENERAL-RELATIVITY ;  FIELD UNIVERSES ;  DARK ENERGY ;  TRAVERSABLE WORMHOLES ;  BLACK-HOLES ;  GRAVITY ;  MODELS ;  THROAT
学科分类: Physics
通讯作者: Sushkov, SV , Kazan VI Lenin State Univ, Dept Gen Relativ & Gravitat, Kremlevskaya Str 18, Kazan 420008, Russia
部门归属: [Sushkov, SV] Kazan VI Lenin State Univ, Dept Gen Relativ & Gravitat, Kazan 420008, Russia; [Zhang, YZ] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We construct exact nonstatic nonhomogeneous spherically symmetric solutions in the theory of gravity with a scalar field possessing the exponential potential. The solution of particular interest corresponds to the scalar field with negative kinetic energy, i.e. a ghost, and represents two asymptotically homogeneous spatially flat universes connected by a throat. We interpret this solution as a wormhole in the cosmological setting. Both the universes and the wormhole throat are simultaneously expanding with acceleration. The character of expansion qualitatively depends on the wormhole's mass m. For m = 0 the expansion goes exponentially, so that the corresponding spacetime configuration represents two de Sitter universes joining by the throat. For m > 0 the expansion has the power character, so that one has the inflating wormhole connecting two homogeneous spatially flat universes expanding according to the power law into the final singularity. The stability analysis of the nonstatic wormholes reveals their instability against linear spherically symmetric perturbations.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000252864000092
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5603
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Scalar wormholes in a cosmological setting and their instability.pdf(120KB)----开放获取View Download

Recommended Citation:
Sushkov, Sergey V.,Zhang, Yuan-Zhong. Scalar wormholes in a cosmological setting and their instability[J]. PHYSICAL REVIEW D,2008,77(2):-.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Sushkov, Sergey V.]'s Articles
 [Zhang, Yuan-Zhong]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Sushkov, Sergey V.]‘s Articles
 [Zhang, Yuan-Zhong]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: Scalar wormholes in a cosmological setting and their instability.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace