A no-singularity scenario in loop quantum gravity

Martin Bojowald, George M. Paily

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Canonical methods allow the derivation of effective gravitational actions from the behavior of space-time deformations reflecting general covariance. With quantum effects, the deformations and correspondingly the effective actions change, revealing dynamical implications of quantum corrections. A new systematic way of expanding these actions is introduced showing as a first result that inverse-triad corrections of loop quantum gravity simplify the asymptotic dynamics near a spacelike collapse singularity. By generic quantum effects, the singularity is removed.

Original languageEnglish (US)
Article number242002
JournalClassical and Quantum Gravity
Volume29
Issue number24
DOIs
StatePublished - Dec 21 2012

Fingerprint

gravitation
derivation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

@article{b27e6532f05541128e24993031076d9e,
title = "A no-singularity scenario in loop quantum gravity",
abstract = "Canonical methods allow the derivation of effective gravitational actions from the behavior of space-time deformations reflecting general covariance. With quantum effects, the deformations and correspondingly the effective actions change, revealing dynamical implications of quantum corrections. A new systematic way of expanding these actions is introduced showing as a first result that inverse-triad corrections of loop quantum gravity simplify the asymptotic dynamics near a spacelike collapse singularity. By generic quantum effects, the singularity is removed.",
author = "Martin Bojowald and Paily, {George M.}",
year = "2012",
month = "12",
day = "21",
doi = "10.1088/0264-9381/29/24/242002",
language = "English (US)",
volume = "29",
journal = "Classical and Quantum Gravity",
issn = "0264-9381",
publisher = "IOP Publishing Ltd.",
number = "24",

}

A no-singularity scenario in loop quantum gravity. / Bojowald, Martin; Paily, George M.

In: Classical and Quantum Gravity, Vol. 29, No. 24, 242002, 21.12.2012.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A no-singularity scenario in loop quantum gravity

AU - Bojowald, Martin

AU - Paily, George M.

PY - 2012/12/21

Y1 - 2012/12/21

N2 - Canonical methods allow the derivation of effective gravitational actions from the behavior of space-time deformations reflecting general covariance. With quantum effects, the deformations and correspondingly the effective actions change, revealing dynamical implications of quantum corrections. A new systematic way of expanding these actions is introduced showing as a first result that inverse-triad corrections of loop quantum gravity simplify the asymptotic dynamics near a spacelike collapse singularity. By generic quantum effects, the singularity is removed.

AB - Canonical methods allow the derivation of effective gravitational actions from the behavior of space-time deformations reflecting general covariance. With quantum effects, the deformations and correspondingly the effective actions change, revealing dynamical implications of quantum corrections. A new systematic way of expanding these actions is introduced showing as a first result that inverse-triad corrections of loop quantum gravity simplify the asymptotic dynamics near a spacelike collapse singularity. By generic quantum effects, the singularity is removed.

UR - http://www.scopus.com/inward/record.url?scp=84870325116&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84870325116&partnerID=8YFLogxK

U2 - 10.1088/0264-9381/29/24/242002

DO - 10.1088/0264-9381/29/24/242002

M3 - Article

VL - 29

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

SN - 0264-9381

IS - 24

M1 - 242002

ER -