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dc.contributor.authorCastelló Gomar, Laura-
dc.contributor.authorMena Marugán, Guillermo A.-
dc.contributor.authorMartín de Blas, Daniel-
dc.contributor.authorOlmedo, Javier-
dc.identifierdoi: 10.1103/PhysRevD.96.103528-
dc.identifierissn: 1550-7998-
dc.identifier.citationPhysical Review D - Particles, Fields, Gravitation and Cosmology 96: 103528 (2017)-
dc.description24 pags., 10 figs., 1 tab.-
dc.description.abstractWe investigate the consequences of the hybrid quantization approach for primordial perturbations in loop quantum cosmology, obtaining predictions for the cosmic microwave background and comparing them with data collected by the Planck mission. In this work, we complete previous studies about the scalar perturbations and incorporate tensor modes. We compute their power spectrum for a variety of vacuum states. We then analyze the tensor-to-scalar ratio and the consistency relation between this quantity and the spectral index of the tensor power spectrum. We also compute the temperature-temperature, electric-electric, temperature-electric, and magnetic-magnetic correlation functions. Finally, we discuss the effects of the quantum geometry in these correlation functions and confront them with observations.-
dc.description.sponsorshipThis work was supported by the Project. No. MINECO FIS2014-54800-C2-2-P from Spain. D. M-dB acknowledges financial support from the Project No. CONICYT/FONDECYT/POSTDOCTORADO/ 3140409 from Chile. J. O. was supported by the Project No. NSF-PHY-1305000, the Project No. PHY-1505411, the Eberly research funds of Penn State University (USA), and by Pedeciba (Uruguay).-
dc.publisherAmerican Physical Society-
dc.relation.isversionofPublisher's version-
dc.titleHybrid loop quantum cosmology and predictions for the cosmic microwave background-
dc.description.versionPeer Reviewed-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.contributor.funderComisión Nacional de Investigación Científica y Tecnológica (Chile)-
dc.contributor.funderUniversity of Pennsylvania-
dc.contributor.funderPedeciba (Uruguay)-
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