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A no-singularity scenario in loop quantum gravity

delete2012-11-14
delete13
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OA
AI
M
Martin Bojowald *
G
George M. Paily
DOI:10.1088/0264-9381/29/24/242002delete
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Abstract

Abstract

En 中文
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.
Keywords:
COSMOLOGY
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Journal

Classical and Quantum Gravity cover
Classical and Quantum Gravity
IF:
3.7
Papers:
1.3W
Citations:
3.0W

Organization

P
pennsylvania commonwealth system of higher education (pcshe)
Scholars:
12.9W
Papers: 11.7W
Citations: 177