Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields

Exact solutions to the Einstein Dirac Klein-Gordon equations are found in Bianchi type-I and type-V spacetimes. When the spinor field is massive, the Bianchi type-I universe has singularities of the Zel dovich type, and it may begin anisotropically at a singularity, leading to a dust-filled Friedman...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Chimento, L.P., Pensa, F.G.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_05562821_v42_n4_p1098_Chimento
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_05562821_v42_n4_p1098_Chimento
record_format dspace
spelling todo:paper_05562821_v42_n4_p1098_Chimento2023-10-03T15:35:20Z Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields Chimento, L.P. Pensa, F.G. Exact solutions to the Einstein Dirac Klein-Gordon equations are found in Bianchi type-I and type-V spacetimes. When the spinor field is massive, the Bianchi type-I universe has singularities of the Zel dovich type, and it may begin anisotropically at a singularity, leading to a dust-filled Friedmann stage at late times. For ghost neutrinos we get an axisymmetric Zel dovich universe. These solutions have particle horizons. For the Bianchi type-V model there exist solutions which begin at a singularity, tending to flat spacetime at late times. In this case the neutrinos are not ghost ones. © 1990 The American Physical Society. Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Pensa, F.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05562821_v42_n4_p1098_Chimento
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description Exact solutions to the Einstein Dirac Klein-Gordon equations are found in Bianchi type-I and type-V spacetimes. When the spinor field is massive, the Bianchi type-I universe has singularities of the Zel dovich type, and it may begin anisotropically at a singularity, leading to a dust-filled Friedmann stage at late times. For ghost neutrinos we get an axisymmetric Zel dovich universe. These solutions have particle horizons. For the Bianchi type-V model there exist solutions which begin at a singularity, tending to flat spacetime at late times. In this case the neutrinos are not ghost ones. © 1990 The American Physical Society.
format JOUR
author Chimento, L.P.
Pensa, F.G.
spellingShingle Chimento, L.P.
Pensa, F.G.
Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields
author_facet Chimento, L.P.
Pensa, F.G.
author_sort Chimento, L.P.
title Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields
title_short Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields
title_full Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields
title_fullStr Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields
title_full_unstemmed Exact Bianchi type-(I,V) solutions of the Einstein equations with scalar and spinor fields
title_sort exact bianchi type-(i,v) solutions of the einstein equations with scalar and spinor fields
url http://hdl.handle.net/20.500.12110/paper_05562821_v42_n4_p1098_Chimento
work_keys_str_mv AT chimentolp exactbianchitypeivsolutionsoftheeinsteinequationswithscalarandspinorfields
AT pensafg exactbianchitypeivsolutionsoftheeinsteinequationswithscalarandspinorfields
_version_ 1782028868077486080

Ejemplares similares