The Dark Energy Properties of the Dirac-Born-Infeld Action
文献类型：期刊论文
| 作者 | Zhang, XY ; Zhang, Q ; Huang, YC |
| 刊名 | ENTROPY
 |
| 出版日期 | 2012 |
| 卷号 | 14期号:7页码:1203-1220 |
| 关键词 | COSMOLOGICAL CONSTANT INFLATIONARY UNIVERSE BRANE INFLATION CONSTRAINTS FLATNESS HORIZON FIELD MODEL |
| ISSN号 | 1099-4300 |
| 通讯作者 | Zhang, XY (reprint author), Beijing Univ Technol, Inst Theoret Phys, Beijing 100124, Peoples R China. |
| 英文摘要 | Introducing a new potential, we deduce a general Lagrangian for Dirac-Born-Infeld (DBI) inflation, in which the determinant of the induced metric naturally includes the kinetic energy and the potential energy. In particular, the potential energy and kinetic energy can convert into each other at any same order, which is in agreement with the limit of classical physics. We also present a general sound speed in the evolutions of the universe, and the exact expressions of energy-momentum tensor, pressure and density. Furthermore, from the results we obtain the new equation of states. The analytic form of the action that is consistent with data turns out to be surprisingly simple and easy to categorize. Finally, we examine properties of the dark energy and introduce a novel mechanism for realizing either quintessence or phantom dark energy dominated phases within a string theoretical context. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] |
| 原文出处 | http://dx.doi.org/10.3390/e14071203 |
| 语种 | 英语 |
| WOS记录号 | WOS:000306748500006 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15069]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Zhang, XY,Zhang, Q,Huang, YC. The Dark Energy Properties of the Dirac-Born-Infeld Action[J]. ENTROPY,2012,14(7):1203-1220. |
| APA | Zhang, XY,Zhang, Q,&Huang, YC.(2012).The Dark Energy Properties of the Dirac-Born-Infeld Action.ENTROPY,14(7),1203-1220. |
| MLA | Zhang, XY,et al."The Dark Energy Properties of the Dirac-Born-Infeld Action".ENTROPY 14.7(2012):1203-1220. |
入库方式： OAI收割
来源：理论物理研究所
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