中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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