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题名: Cosmological scaling solutions of multiple tachyon fields with inverse square potentials
作者: 郭宗宽 ;  Zhang, YZ
刊名: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
出版日期: 2004
期号: 8, 页码:-
关键词: EXPONENTIAL POTENTIALS ;  ASSISTED INFLATION
学科分类: Physics
通讯作者: Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We investigate the cosmological dynamics of multiple tachyon fields with inverse square potentials. A phase-space analysis of the spatially flat FRW models shows that there exist power-law cosmological scaling solutions. We study the stability of the solutions only for the case of two tachyon fields and find that the potential - kinetic- scaling solution is a global attractor. However, in the presence of a barotropic fluid the solution is an attractor only in one region of the parameter space, and the tracking solution is an attractor in the other region. We briefly discuss the physical consequences of these results.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000223638500008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14028
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Guo, ZK,Zhang, YZ. Cosmological scaling solutions of multiple tachyon fields with inverse square potentials[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2004(8):-.
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