Effective Scenario of Loop Quantum Cosmology

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dc.creatorDing, You
dc.creatorMa, Yongge
dc.creatorYang, Jinsong
dc.date2008-08-07
dc.date2009-02-06
dc.date.accessioned2026-07-07T12:46:56Z
dc.date.available2026-07-07T12:46:56Z
dc.descriptionSemiclassical states in isotropic loop quantum cosmology are employed to show that the improved dynamics has the correct classical limit. The effective Hamiltonian for the quantum cosmological model with a massless scalar field is thus obtained, which incorporates also the next to leading order quantum corrections. The possibility that the higher order correction terms may lead to significant departure from the leading order effective scenario is revealed. If the semiclassicality of the model is maintained in the large scale limit, there are great possibilities for $k=0$ Friedmann expanding universe to undergo a collapse in the future due to the quantum gravity effect. Thus the quantum bounce and collapse may contribute a cyclic universe in the new scenario.
dc.description4 pages, 2 figures; version published in PRL
dc.identifierhttps://arxiv.org/abs/0808.0990
dc.identifierhttp://arxiv.org/abs/0808.0990
dc.identifierPhys.Rev.Lett.102:051301,2009
dc.identifierdoi:10.1103/PhysRevLett.102.051301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221549
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectCosmology and Nongalactic Astrophysics
dc.subjectHigh Energy Physics - Theory
dc.subjectQuantum Physics
dc.titleEffective Scenario of Loop Quantum Cosmology
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