Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-08-10
Phys.Rev.D78:063001,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
18 pages, 7 figures, PRD published version
Scientific paper
10.1103/PhysRevD.78.063001
We study the dynamics of a phantom scalar field dark energy interacting with dark matter in loop quantum cosmology (LQC). Two kinds of coupling of the form $\alpha{\rho_m}{\dot\phi}$ (case I) and $3\beta H (\rho_\phi +\rho_m)$ (case II) between the phantom energy and dark matter are examined with the potential for the phantom field taken to be exponential. For both kinds of interactions, we find that the future singularity appearing in the standard FRW cosmology can be avoided by loop quantum gravity effects. In case II, if the phantom field is initially rolling down the potential, the loop quantum effect has no influence on the cosmic late time evolution and the universe will accelerate forever with a constant energy ratio between the dark energy and dark matter.
Fu Xiangyun
Wu Puxun
Yu Hongwei
No associations
LandOfFree
Dynamics of interacting phantom scalar field dark energy 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 Dynamics of interacting phantom scalar field dark energy in Loop Quantum Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamics of interacting phantom scalar field dark energy in Loop Quantum Cosmology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-370375