Towards the graviton from spinfoams: the 3d toy model

Details Towards the graviton from spinfoams: the 3d toy model Towards the graviton from spinfoams: the 3d toy model

2005-12-19

arxiv.org/abs/gr-qc/0512102v3

JHEP 0605 (2006) 039

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 2 figures; v3 revised version

Scientific paper

10.1088/1126-6708/2006/05/039

Recently, a proposal has appeared for the extraction of the 2-point function of linearised quantum gravity, within the spinfoam formalism. This relies on the use of a boundary state, which introduces a semi-classical flat geometry on the boundary. In this paper, we investigate this proposal considering a toy model in the (Riemannian) 3d case, where the semi-classical limit is better understood. We show that in this limit the propagation kernel of the model is the one for the harmonic oscillator. This is at the origin of the expected 1/L behaviour of the 2-point function. Furthermore, we numerically study the short scales regime, where deviations from this behaviour occur.

Affiliated with

Also associated with

No associations

Rating

Towards the graviton from spinfoams: the 3d toy model 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 Towards the graviton from spinfoams: the 3d toy model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Towards the graviton from spinfoams: the 3d toy model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-281277