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.
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页数：8
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