Spinfoam Cosmology: quantum cosmology from the full theory

Details Spinfoam Cosmology: quantum cosmology from the full theory Spinfoam Cosmology: quantum cosmology from the full theory

2010-11-21

arxiv.org/abs/1011.4705v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, jpconf.cls, to appear in the Proceedings of Spanish Relativity Meeting 2010 (ERE2010), Granada, Spain

Scientific paper

10.1088/1742-6596/314/1/012049

Quantum cosmology is usually studied quantizing symmetry-reduced variables. Is it possible, instead, to define quantum cosmology starting from the full quantum gravity theory? In Loop Quantum Gravity (LQG), it is possible to cut the degrees of freedom in a suitable way, in order to define a cosmological model. Such a model provides a tool for describing general fluctuations of the quantum geometry at the bounce that replaces the initial singularity. I focus on its simplest version, a "dipole" formed by two tetrahedra. This has been shown to describe a universe with anisotropic and inhomogenous degrees of freedom. Its dynamics can be given using the spinfoam formalism. I briefly review the present state of this approach.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-656451