Towards Spinfoam Cosmology

Details Towards Spinfoam Cosmology Towards Spinfoam Cosmology

2010-03-17

arxiv.org/abs/1003.3483v1

Phys.Rev.D82:084035,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages

Scientific paper

10.1103/PhysRevD.82.084035

We compute the transition amplitude between coherent quantum-states of geometry peaked on homogeneous isotropic metrics. We use the holomorphic representations of loop quantum gravity and the Kaminski-Kisielowski-Lewandowski generalization of the new vertex, and work at first order in the vertex expansion, second order in the graph (multipole) expansion, and first order in 1/volume. We show that the resulting amplitude is in the kernel of a differential operator whose classical limit is the canonical hamiltonian of a Friedmann-Robertson-Walker cosmology. This result is an indication that the dynamics of loop quantum gravity defined by the new vertex yields the Friedmann equation in the appropriate limit.

Affiliated with

Also associated with

No associations

Rating

Towards Spinfoam Cosmology 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 Spinfoam Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Towards Spinfoam Cosmology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-699717