2007/04/30 by Daris Samart, Burin Gumjudpai
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #astro-ph #gr-qc #hep-ph
paper · pdf · doi:10.1103/physrevd.76.043514
published as Phys.Rev.D76:043514,2007 · 8 pages, 6 figures, Revtex 4, Figures and References added. Version accepted by Physical Review D15
arxiv created 2007/07/07 · openalex publication_date 2007/08/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.