Entanglement Entropy of the Early Universe in Generalized Chaplygin Gas Model

Details Entanglement Entropy of the Early Universe in Generalized Chaplygin Gas Model Entanglement Entropy of the Early Universe in Generalized Chaplygin Gas Model

2011-12-07

arxiv.org/abs/1112.1682v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 3 figures

Scientific paper

We provide an explicit calculation of the evolution of the cosmic entanglement entropy in the early universe before the matter dominant era. This is made possible by invoking the generalized Chaplygin gas (GCG) model, which has the advantage of preserving unitarity and providing a smooth transition between the inflation epoch and the radiation dominant era. The dynamics of the universe is described by the quantization in the minisuperspace of the GCG model, following the prescription proposed by Wheeler and DeWitt. Two sources of contribution to the cosmic entanglement entropy are considered: one from the homogeneous background where the observable and the unobservable regions of the universe are entangled and the other from the inhomogeneous cosmological perturbations where different modes are entangled. We find that the homogeneous contribution grows exponentially at the very beginning of the inflation, but decreases during the radiation dominant era. Conversely, that from the cosmological perturbation is found to decrease at first and then increase after reaching a minimum value. The net result is that the total entanglement entropy reaches a minimum at an early stage of the inflation and then increases throughout most of the inflation and the entire radiation dominant era.

Affiliated with

Also associated with

No associations

Rating

Entanglement Entropy of the Early Universe in Generalized Chaplygin Gas 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 Entanglement Entropy of the Early Universe in Generalized Chaplygin Gas Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Entanglement Entropy of the Early Universe in Generalized Chaplygin Gas Model will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-546446