A note on B-observables in Ponzano-Regge 3D quantum gravity

被引：14

作者：

Livine, Etera R. ^{[1
]}

Ryan, James P. ^{[2
]}

机构：

[1] CNRS, ENS Lyon, UMR 5672, Phys Lab, F-69007 Lyon, France

[2] Perimeter Inst, Waterloo, ON N2L 2Y5, Canada

来源：

CLASSICAL AND QUANTUM GRAVITY | 2009年 / 26卷 / 03期

关键词：

GROUP FIELD-THEORY; SPIN FOAM MODELS; GENERAL-RELATIVITY; PARTICLES; MATTER; AREA;

D O I：

10.1088/0264-9381/26/3/035013

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the insertion and value of metric observables in the (discrete) path integral formulation of the Ponzano-Regge spinfoam model for 3D quantum gravity. In particular, we discuss the length spectrum and the relation between insertion of such B-observables and gauge fixing in the path integral.

引用

页数：19

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