Phys. Rev. D 76, 043514 (2007) [8 pages]Phantom field dynamics in loop quantum cosmologyReceived 7 May 2007; published 14 August 2007 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. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.043514
DOI:
10.1103/PhysRevD.76.043514
PACS:
98.80.Cq
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