Cascading gravity:: Extending the Dvali-Gabadadze-Porrati model to higher dimension

被引：123

作者：

de Rham, Claudia ^{[1
,2
]}

Dvali, Gia ^{[3
,4
]}

Hofmann, Stefan ^{[1
,5
]}

Khoury, Justin ^{[1
]}

Pujolas, Oriol ^{[4
]}

Redi, Michele ^{[4
,6
]}

Tolley, Andrew J. ^{[1
]}

机构：

[1] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

[2] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[3] CERN, Div Theory, CH-1211 Geneva 23, Switzerland

[4] NYU, Ctr Cosmol & Particle Phys, New York, NY 10003 USA

[5] NORDITA, S-10691 Stockholm, Sweden

[6] Ecole Polytech Fed Lausanne, Inst Theorie Phenomenes Phys, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.100.251603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a generalization of the Dvali-Gabadadze-Porrati scenario to higher codimensions which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding our visible 3-brane within a 4-brane, each with their own induced gravity terms, in a flat 6D bulk. The model is ghost-free if the tension on the 3-brane is larger than a certain critical value, while the induced metric remains flat. The gravitational force law "cascades" from a 6D behavior at the largest distances followed by a 5D and finally a 4D regime at the shortest scales.

引用

页数：4

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