Magnetic Bianchi I Universe in Loop Quantum Cosmology

Details Magnetic Bianchi I Universe in Loop Quantum Cosmology Magnetic Bianchi I Universe in Loop Quantum Cosmology

2008-12-10

arxiv.org/abs/0812.1889v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

We examine the dynamical consequences of homogeneous cosmological magnetic fields in the framework of loop quantum cosmology. We show that a big-bounce occurs in a collapsing magnetized Bianchi I universe, thus extending the known cases of singularity-avoidance. Previous work has shown that perfect fluid Bianchi I universes in loop quantum cosmology avoid the singularity via a bounce. The fluid has zero anisotropic stress, and the shear anisotropy in this case is conserved through the bounce. By contrast, the magnetic field has nonzero anisotropic stress, and shear anisotropy is not conserved through the bounce. After the bounce, the universe enters a classical phase. The addition of a dust fluid does not change these results qualitatively.

Affiliated with

Also associated with

No associations

Rating

Magnetic Bianchi I Universe in Loop Quantum 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 Magnetic Bianchi I Universe in Loop Quantum Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic Bianchi I Universe in Loop Quantum Cosmology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-527481