Cosmological scaling solutions and multiple exponential potentials
文献类型：期刊论文
| 作者 | Guo, ZK ; Piao, YS; Zhang, YZ; Guo, ZK , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
|
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2003 |
| 卷号 | 568期号:40910页码:1-7 |
| 关键词 | Inflationary Universe Scalar Fields Models Spacetimes Flatness Scenario Horizon |
| ISSN号 | 0370-2693 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000184890800001 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/13237]  |
| 专题 | 理论物理研究所_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. |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。