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Phantom field dynamics in loop quantum cosmology

  • Naresuan University

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number043514
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume76
Issue number4
DOIs
Publication statusPublished - 14 Aug 2007
Externally publishedYes

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