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Cosmological scaling solutions of multiple tachyon fields with inverse square potentials
Guo, ZK; Zhang, YZ; Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2004
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
期号8页码:-
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.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Exponential Potentials Assisted Inflation
学科领域Physics
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收录类别SCI
WOS记录号WOS:000223638500008
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14028
专题理论物理所1978-2010年知识产出
通讯作者Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Guo, ZK,Zhang, YZ,Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Cosmological scaling solutions of multiple tachyon fields with inverse square potentials[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2004(8):-.
APA Guo, ZK,Zhang, YZ,&Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2004).Cosmological scaling solutions of multiple tachyon fields with inverse square potentials.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8),-.
MLA Guo, ZK,et al."Cosmological scaling solutions of multiple tachyon fields with inverse square potentials".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2004):-.
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