Multi-graviton theory from a discretized RS brane-world and the induced cosmological constant

被引：25

作者：

Cognola, G ^{[1
]}

Zerbini, S

Elizalde, E

Nojiri, S

Odintsov, SD

机构：

[1] Univ Trent, Dipartimento Fis, I-38050 Trent, Italy

[2] Ist Nazl Fis Nucl, Grp Collegato Trento, I-38050 Trent, Italy

[3] Consejo Super Invest Cient, IEEC, Barcelona 08034, Spain

[4] Univ Barcelona, Fac Fis, Dept ECM, E-08028 Barcelona, Spain

[5] Univ Barcelona, Fac Fis, IFAE, E-08028 Barcelona, Spain

[6] Natl Def Acad, Dept Appl Phys, Yokosuka, Kanagawa 2398686, Japan

[7] Inst Estudis Espacials Catalunya, Barcelona 08034, Spain

[8] ICREA, Barcelona, Spain

[9] TSPU, Tomsk, Russia

来源：

MODERN PHYSICS LETTERS A | 2004年 / 19卷 / 19期

关键词：

quantum gravity; brane-world; decompactification;

D O I：

10.1142/S0217732304014148

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose a multi-graviton theory with non-nearest-neighbor couplings in the theory space. The resulting four-dimensional discrete mass spectrum reflects the structure of a latticed extra dimension. For a plausible mass spectrum motivated by the discretized Randall-Sundrum brane-world, the induced cosmological constant turns out to be positive and may serve as a quite simple model for the dark energy of our accelerating universe.

引用

页码：1435 / 1445

页数：11

共 19 条

[1] Effective field theory for massive gravitons and gravity in theory space [J].