Inflationary universe in loop quantum cosmology

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dc.creatorZhang, Xin
dc.creatorLing, Yi
dc.date2007-05-18
dc.date2007-07-23
dc.date.accessioned2026-07-07T10:55:40Z
dc.date.available2026-07-07T10:55:40Z
dc.descriptionLoop quantum cosmology provides a nice solution of avoiding the big bang singularity through a big bounce mechanism in the high energy region. In loop quantum cosmology an inflationary universe is emergent after the big bounce, no matter what matter component is filled in the universe. A super-inflation phase without phantom matter will appear in a certain way in the initial stage after the bounce; then the universe will undergo a normal inflation stage. We discuss the condition of inflation in detail in this framework. Also, for slow-roll inflation, we expect the imprint from the effects of the loop quantum cosmology should be left in the primordial perturbation power spectrum. However, we show that this imprint is too weak to be observed.
dc.description21 pages, 4 figures; accepted for publication in JCAP
dc.identifierhttps://arxiv.org/abs/0705.2656
dc.identifierhttp://arxiv.org/abs/0705.2656
dc.identifierJCAP0708:012,2007
dc.identifierdoi:10.1088/1475-7516/2007/08/012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186154
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleInflationary universe in loop quantum cosmology
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