Localization of gravity on brane embedded in AdS(5) and dS(5)

Localization of gravity on brane embedded in AdS(5) and dS(5)
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AdS(5) 和 dS(5) 中嵌入的膜上的重力本地化

DOI:
10.1103/physrevd.66.064016
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发表时间:
2002
期刊:
影响因子:
5
通讯作者:
M. Yahiro
M. Yahiro
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
I. Brevik;K. Ghoroku;S. Odintsov;M. Yahiro

文献摘要

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我们解决了嵌入 $AdS_{5}$ 或 $dS_{5}$ 体积空间中的 Friedmann-Robertson-Walker 型膜上的引力局域化问题,并推导了两个明确的极限,体宇宙学常数的值必须位于这两个极限之间,以便将引力子定位在膜上。下限意味着膜应该是 $dS_{4}$ 或 4d $AdS_{5}$ 块体中的 Minkowski。正上限表明重力也可以被捕获在 $dS_{5}$ 块体空间中的弯曲膜上。还讨论了对最近宇宙学场景的一些影响。
We address the localization of gravity on the Friedmann-Robertson-Walker type brane embedded in either $AdS_{5}$ or $dS_{5}$ bulk space,and derive two definite limits between which the value of the bulk cosmological constant has to lie in order to localize the graviton on the brane.The lower limit implies that the brane should be either $dS_{4}$ or 4d Minkowski in the $AdS_{5}$ bulk.The positive upper limit indicates that the gravity can be trapped also on curved brane in the $dS_{5}$ bulk space.Some implications to recent cosmological scenarios are also discussed.