Knowledge Management System of Institute of Theoretical Physics, CAS
Guo, ZK ; Piao, YS; Zhang, YZ; Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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| Cosmological scaling solutions and multiple exponential potentials | |
| Source Publication | PHYSICS LETTERS B
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| Keyword | Inflationary Universe Scalar Fields Models Spacetimes Flatness Scenario Horizon |
| Abstract | We present a phase-space analysis of cosmology containing multiple scalar fields with positive and negative exponential potentials. We show that there exist power-law multi-kinetic-potential scaling solutions for sufficiently flat positive potentials or steep negative potentials. The former is the unique late-time attractor and the well-known assisted inflationary solution, but the later is never unstable in an expanding universe. Moreover, for steep negative potentials there exist a kinetic-dominated regime in which each solution is a late-time attractor. We briefly discuss the physical consequences of these results. (C) 2003 Published by Elsevier B.V. |
| 2003 | |
| ISSN | 0370-2693 |
| Volume | 568Issue:40910Pages:1-7 |
| Subject Area | Physics |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/13237 |
| Collection | SCI期刊论文 |
| Corresponding Author | Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Guo, ZK,Piao, YS,Zhang, YZ,et al. Cosmological scaling solutions and multiple exponential potentials[J]. PHYSICS LETTERS B,2003,568(40910):1-7. |
| APA | Guo, ZK,Piao, YS,Zhang, YZ,&Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2003).Cosmological scaling solutions and multiple exponential potentials.PHYSICS LETTERS B,568(40910),1-7. |
| MLA | Guo, ZK,et al."Cosmological scaling solutions and multiple exponential potentials".PHYSICS LETTERS B 568.40910(2003):1-7. |
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