Phantom field dynamics in loop quantum cosmology
Journal Article
·
· Physical Review. D, Particles Fields
- Fundamental Physics and Cosmology Research Unit, Tah Poe Academia Institute (TPTP), Department of Physics, Naresuan University, Phitsanulok, 65000 (Thailand)
We consider a dynamical system of phantom scalar field under exponential potential in the background of loop quantum cosmology. In our analysis, there is neither stable node nor repeller unstable node but only two saddle points, hence no big rip singularity. Physical solutions always possess potential energy greater than the magnitude of the negative kinetic energy. We found that the universe bounces after accelerating even in the domination of the phantom field. After bouncing, the universe finally enters the oscillatory regime.
- OSTI ID:
- 21027579
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 4 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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