Cosmological constant in spinfoam cosmology

被引：32

作者：

Bianchi, Eugenio ^{[1
,2
,3
,4
,5
]}

Krajewski, Thomas ^{[1
,2
,3
,4
,5
]}

Rovelli, Carlo ^{[1
,2
,3
,4
,5
]}

Vidotto, Francesca ^{[1
,2
,3
,4
,5
,6
,7
]}

机构：

[1] CNRS, Ctr Phys Theor Luminy, Unite Rech, UMR 6207, F-13288 Marseille, France

[2] Univ Aix Marseille 1, F-13288 Marseille, France

[3] Univ Aix Marseille 2, F-13288 Marseille, France

[4] Univ Sud Toulon Var, F-13288 Marseille, France

[5] FRUMAM FR 2291, F-13288 Marseille, France

[6] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy

[7] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.83.104015

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider a simple modification of the amplitude defining the dynamics of loop quantum gravity, corresponding to the introduction of the cosmological constant, and possibly related to the SL(2, C)(q) extension of the theory recently considered by Fairbairn-Meusburger and Han. We show that, in the context of spinfoam cosmology, this modification yields the de Sitter cosmological solution.

引用

页数：4

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