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题名: Two 3-branes in Randall-Sundrum setup and current acceleration of the universe
作者: Wang, Anzhong ;  蔡荣根 ;  Santos, N. O.
刊名: NUCLEAR PHYSICS B
出版日期: 2008
卷号: 797, 期号:3, 页码:395-430
关键词: WALL SPACE-TIMES ;  COSMOLOGICAL CONSTANT ;  EXTRA DIMENSION ;  BRANE-WORLD ;  DOMAIN-WALL ;  LOCALIZED GRAVITY ;  SITTER BRANE ;  RADION ;  BULK ;  STABILIZATION
学科分类: Physics
通讯作者: Wang, AZ , Baylor Univ, CASPER, Dept Phys, Waco, TX 76798 USA,USA
部门归属: [Wang, AZ] Baylor Univ, CASPER, Dept Phys, Waco, TX 76798 USA; [Cai, RG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Santos, NO] Univ London, Sch Math Sci, London E1 4NS, England; [Santos, NO] Univ Paris 06, CNRS, LERMA,FRE 2460, ERGA, F-75005 Paris, France; [Santos, NO] Lab Nacl Computcao Cient, BR-25651070 Petropolis, RJ, Brazil
英文摘要: Five-dimensional spacetimes of two orbifold 3-branes are studied, by assuming that the two 3-branes are spatially homogeneous, isotropic, and independent of time, following the so-called "bulk-based" approach. The most general form of the metric is obtained, and the corresponding field equations are divided into three groups, one is valid on each of the two 3-branes, and the third is valid in the bulk. The Einstein tensor on the 3-branes is expressed in terms of the discontinuities of the first-order derivatives of the metric coefficients. Thus, once the metric is known in the bulk, the distribution of the Einstein tensor on the two 3-branes is uniquely determined. As applications, we consider two different cases, one is in which the bulk is locally AdS(5), and the other is where it is vacuum. In Some cases, it is shown that the universe is first decelerating and then accelerating. The global Structure of the bulk as well as the 3-branes is also studied, and found that in some cases the solutions may represent the collision of two orbifold 3-branes. The applications of the formulas to the studies of the cyclic universe and the cosmological constant problem are also pointed out. (C) 2007 Elsevier B.V. All rights reserved.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000255556200002
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内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5504
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wang, Anzhong,Cai, Rong-Gen,Santos, N. O.. Two 3-branes in Randall-Sundrum setup and current acceleration of the universe[J]. NUCLEAR PHYSICS B,2008,797(3):395-430.
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