Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity

Details Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity

2005-08-29

arxiv.org/abs/gr-qc/0508118v2

Class.Quant.Grav. 23 (2006) 987-1008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

28 pages, 1 figure; v2: extended discussion of singularity removal and summary

Scientific paper

10.1088/0264-9381/23/3/023

Degenerate geometrical configurations in quantum gravity are important to understand if the fate of classical singularities is to be revealed. However, not all degenerate configurations arise on an equal footing, and one must take into account dynamical aspects when interpreting results: While there are many degenerate spatial metrics, not all of them are approached along the dynamical evolution of general relativity or a candidate theory for quantum gravity. For loop quantum gravity, relevant properties and steps in an analysis are summarized and evaluated critically with the currently available information, also elucidating the role of degrees of freedom captured in the sector provided by loop quantum cosmology. This allows an outlook on how singularity removal might be analyzed in a general setting and also in the full theory. The general mechanism of loop quantum cosmology will be shown to be insensitive to recently observed unbounded behavior of inverse volume in the full theory. Moreover, significant features of this unboundedness are not a consequence of inhomogeneities but of non-Abelian effects which can also be included in homogeneous models.

Affiliated with

Also associated with

No associations

Rating

Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Degenerate Configurations, Singularities and the Non-Abelian Nature of Loop Quantum Gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-404937