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Modeling effective FRW cosmologies with perfect fluids from states of the hybrid quantum Gowdy model

AutorElizaga Navascués, Beatriz ; Martín-Benito, Mercedes ; Mena Marugán, Guillermo A.
Fecha de publicación22-ene-2015
EditorAmerican Physical Society
CitaciónPhysical Review D - Particles, Fields, Gravitation and Cosmology 91: 024028 (2015)
ResumenWe employ recently developed approximation methods in the hybrid quantization of the Gowdy T3 model with linear polarization and a massless scalar field to obtain physically interesting solutions of this inhomogeneous cosmology. More specifically, we propose some particular approximate solutions of the quantum Gowdy model constructed in such a way that, for the Hamiltonian constraint, they effectively behave as those corresponding to a flat homogeneous and isotropic universe filled with a perfect fluid, even though these quantum states are far from being homogeneous and isotropic. We analyze how one can get different perfect fluid effective behaviors, including the cases of dust, radiation, and a cosmological constant. © 2015 American Physical Society
Descripción13 pags.; 1 fig.; PACS numbers: 04.60.Pp, 04.60.Kz, 98.80.Qc
Versión del editorhttp://dx.doi.org/10.1103/PhysRevD.91.024028
URI10261/129377
DOI10.1103/PhysRevD.91.024028
Identificadoresdoi: 10.1103/PhysRevD.91.024028
issn: 1550-2368
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