Deformed covariance in spherically symmetric vacuum models of loop quantum gravity: Consistency in Euclidean and self-dual gravity

被引：8

作者：

Bojowald, Martin ^{[1
]}

Brahma, Suddhasattwa ^{[2
]}

Ding, Ding ^{[1
]}

Ronco, Michele ^{[3
]}

机构：

[1] Penn State Univ, Inst Gravitat & Cosmos, 104 Davey Lab, University Pk, PA 16802 USA

[2] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada

[3] Univ Paris 06, LPNHE, Case Courrier 200,4 Pl Jussieu, F-75005 Paris, France

来源：

PHYSICAL REVIEW D | 2020年 / 101卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HAMILTONIAN-FORMULATION; REAL;

D O I：

10.1103/PhysRevD.101.026001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Different versions of consistent canonical realizations of hypersurface deformations of spherically symmetric spacetimes have been derived in models of loop quantum gravity, modifying the classical dynamics and sometimes also the structure of spacetime. Based on a canonical version of effective field theory, this paper provides a unified treatment, showing that modified spacetime structures are generic in this setting. The special case of Euclidean gravity demonstrates agreement also with existing operator calculations.

引用

页数：22

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