Dynamics of Quintom and Hessence Energies in Loop Quantum Cosmology

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dc.creatorWei, Hao
dc.creatorZhang, Shuang Nan
dc.date2007-05-28
dc.date2007-09-18
dc.date.accessioned2026-07-07T10:55:53Z
dc.date.available2026-07-07T10:55:53Z
dc.descriptionIn the present work, we investigate the universe dominated by quintom or hessence energies in Loop Quantum Cosmology (LQC). Interestingly enough, we find that there are some stable attractors in these two cases. In the case of quintom, all stable attractors have the feature of decelerated expansion. In the case of hessence, most of stable attractors have the feature of decelerated expansion while one stable attractor can have decelerated or accelerated expansion depend on the model parameter. In all cases, the equation-of-state parameter (EoS) of all stable attractors are larger than -1 and there is no singularity in the finite future. These results are different from the dynamics of phantom in LQC, or the ones of phantom, quintom and hessence in classical Einstein gravity.
dc.description14 pages, 4 tables, revtex4; v2: accepted for publication in Phys. Rev. D; v3: published version
dc.identifierhttps://arxiv.org/abs/0705.4002
dc.identifierhttp://arxiv.org/abs/0705.4002
dc.identifierPhys.Rev.D76:063005,2007
dc.identifierdoi:10.1103/PhysRevD.76.063005
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186225
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleDynamics of Quintom and Hessence Energies in Loop Quantum Cosmology
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