Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant

The general solution to the semiclassical back-reaction equations for conformally invariant quantum free fields is found in spatially flat homogeneous and isotropic spacetimes containing an unquantized Dirac field and cosmological constant when the ratio of the renormalization parameters is . It sho...

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Autores principales: Alé, Marcelo, Chimento, Luis Pascual
Publicado: 1995
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v12_n1_p101_Ale
http://hdl.handle.net/20.500.12110/paper_02649381_v12_n1_p101_Ale
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_02649381_v12_n1_p101_Ale
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spelling paper:paper_02649381_v12_n1_p101_Ale2023-06-08T15:23:18Z Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant Alé, Marcelo Chimento, Luis Pascual The general solution to the semiclassical back-reaction equations for conformally invariant quantum free fields is found in spatially flat homogeneous and isotropic spacetimes containing an unquantized Dirac field and cosmological constant when the ratio of the renormalization parameters is . It shows two-parameter families of bouncing solutions which avoid the singularity. There are several one-parameter families without particle horizons. The stability of the solutions which have a final de Sitter stage is investigated. Fil:Alé, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1995 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v12_n1_p101_Ale http://hdl.handle.net/20.500.12110/paper_02649381_v12_n1_p101_Ale
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The general solution to the semiclassical back-reaction equations for conformally invariant quantum free fields is found in spatially flat homogeneous and isotropic spacetimes containing an unquantized Dirac field and cosmological constant when the ratio of the renormalization parameters is . It shows two-parameter families of bouncing solutions which avoid the singularity. There are several one-parameter families without particle horizons. The stability of the solutions which have a final de Sitter stage is investigated.
author Alé, Marcelo
Chimento, Luis Pascual
spellingShingle Alé, Marcelo
Chimento, Luis Pascual
Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant
author_facet Alé, Marcelo
Chimento, Luis Pascual
author_sort Alé, Marcelo
title Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant
title_short Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant
title_full Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant
title_fullStr Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant
title_full_unstemmed Self-consistent solutions of the semiclassical Einstein-Dirac equations with cosmological constant
title_sort self-consistent solutions of the semiclassical einstein-dirac equations with cosmological constant
publishDate 1995
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v12_n1_p101_Ale
http://hdl.handle.net/20.500.12110/paper_02649381_v12_n1_p101_Ale
work_keys_str_mv AT alemarcelo selfconsistentsolutionsofthesemiclassicaleinsteindiracequationswithcosmologicalconstant
AT chimentoluispascual selfconsistentsolutionsofthesemiclassicaleinsteindiracequationswithcosmologicalconstant
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