Phantom field dynamics in loop quantum cosmology

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dc.creatorSamart, Daris
dc.creatorGumjudpai, Burin
dc.date2007-04-25
dc.date2007-07-07
dc.date.accessioned2026-07-07T11:20:23Z
dc.date.available2026-07-07T11:20:23Z
dc.descriptionWe consider a dynamical system of phantom scalar field under exponential potential in 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 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 oscillatory regime.
dc.description8 pages, 6 figures, Revtex 4, Figures and References added. Version accepted by Physical Review D15
dc.identifierhttps://arxiv.org/abs/0704.3414
dc.identifierhttp://arxiv.org/abs/0704.3414
dc.identifierPhys.Rev.D76:043514,2007
dc.identifierdoi:10.1103/PhysRevD.76.043514
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193944
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePhantom field dynamics in loop quantum cosmology
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