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The Dark Energy Properties of the Dirac-Born-Infeld Action
Zhang, XY; Zhang, Q; Huang, YC; Zhang, XY (reprint author), Beijing Univ Technol, Inst Theoret Phys, Beijing 100124, Peoples R China.
2012
发表期刊ENTROPY
ISSN1099-4300
卷号14期号:7页码:1203-1220
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.
部门归属[Zhang, Xinyou; Huang, Yongchang] Beijing Univ Technol, Inst Theoret Phys, Beijing 100124, Peoples R China; [Zhang, Qing] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England; [Huang, Yongchang] Chinese Acad Sci, Kavli Inst Theoret Phys, Beijing 100080, Peoples R China; [Huang, Yongchang] CCAST World Lab, Beijing 100080, Peoples R China
关键词Cosmological Constant Inflationary Universe Brane Inflation Constraints Flatness Horizon Field Model
学科领域Physics
资助者Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005]
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收录类别SCI
语种英语
资助者Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005] ; Chinese Academy of Sciences [KJCX2. YW. W10]; National Natural Science Foundation of China [10875009]; Beijing Natural Science Foundation [1072005]
WOS记录号WOS:000306748500006
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15069
专题理论物理所SCI论文
通讯作者Zhang, XY (reprint author), Beijing Univ Technol, Inst Theoret Phys, Beijing 100124, Peoples R China.
推荐引用方式
GB/T 7714
Zhang, XY,Zhang, Q,Huang, YC,et al. The Dark Energy Properties of the Dirac-Born-Infeld Action[J]. ENTROPY,2012,14(7):1203-1220.
APA Zhang, XY,Zhang, Q,Huang, YC,&Zhang, XY .(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.
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