Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2011-03-08
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
v3: major review, lot of modifications, including interpretation of results
Scientific paper
We study the classical limit of the ELPR/FK spin foam models by analyzing the large-distance asymptotics of the corresponding graviton propagators. This is done by examining the large-spin asymptotics of the Hartle-Hawking wavefunction which is peaked around a classical flat spatial geometry. By using the stationary phase method we determine the wavefunction asymptotics. The obtained asymptotics does not give the desired large-distance asymptotics for the corresponding graviton propagator. However, we show that the ELPR/FK vertex amplitude can be redefined such that the corresponding Hartle-Hawking wavefunction gives the desired asymptotics for the graviton propagator.
Mikovic Aleksandar
Vojinovic Marko
No associations
LandOfFree
Graviton propagator asymptotics and the classical limit of ELPR/FK spin foam models 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 Graviton propagator asymptotics and the classical limit of ELPR/FK spin foam models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Graviton propagator asymptotics and the classical limit of ELPR/FK spin foam models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-81950