Background independence and field redefinitions in quantum gravity

被引：3

作者：

Casadio, Roberto ^{[1
,2
]}

Kamenshchik, Alexander ^{[1
,2
]}

Kuntz, Ibere ^{[3
]}

机构：

[1] Univ Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy

[2] INFN, Sez Bologna, IS FLAG, Viale B Pichat 6-2, I-40127 Bologna, Italy

[3] Univ Fed Parana, Dept Fis, POB 19044, BR-81531980 Curitiba, PR, Brazil

来源：

ANNALS OF PHYSICS | 2023年 / 449卷

关键词：

Background independence; Field redefinition; Quantum Gravity; Effective action;

D O I：

10.1016/j.aop.2022.169203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is generally believed that a full-fledged theory of quantum gravity should exhibit background independence and diffeomor-phism invariance. In its most general form, the latter comprises field redefinitions, which are diffeomorphisms in configuration space. We show that any path-integral approach to quantum gravity leads to a tension between these properties, such that they cannot hold simultaneously.(c) 2022 Elsevier Inc. All rights reserved.

引用

页数：8

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