Interacting fluids generating identical, dual and phantom cosmologies

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We find the group of symmetry transformations generated by interacting fluids in spatially flat Friedmann-Robertson-Walker (FRW) spacetime which links cosmologies with the same scale factor (identity) or with scale factors a and a-1 (duality). There exists a duality between contracting and superacce...

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Autor principal: Chimento, L.P.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v633_n1_p9_Chimento
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03702693_v633_n1_p9_Chimento
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spelling todo:paper_03702693_v633_n1_p9_Chimento2023-10-03T15:28:56Z Interacting fluids generating identical, dual and phantom cosmologies Chimento, L.P. We find the group of symmetry transformations generated by interacting fluids in spatially flat Friedmann-Robertson-Walker (FRW) spacetime which links cosmologies with the same scale factor (identity) or with scale factors a and a-1 (duality). There exists a duality between contracting and superaccelerated expanding scenarios associated with (phantom) cosmologies. We investigate the action of this symmetry group on self-interacting minimally (conformally) coupled quintessence and k-essence cosmologies. © 2005 Elsevier B.V. All rights reserved. Fil:Chimento, L.P. 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_03702693_v633_n1_p9_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 We find the group of symmetry transformations generated by interacting fluids in spatially flat Friedmann-Robertson-Walker (FRW) spacetime which links cosmologies with the same scale factor (identity) or with scale factors a and a-1 (duality). There exists a duality between contracting and superaccelerated expanding scenarios associated with (phantom) cosmologies. We investigate the action of this symmetry group on self-interacting minimally (conformally) coupled quintessence and k-essence cosmologies. © 2005 Elsevier B.V. All rights reserved.
format JOUR
author Chimento, L.P.
spellingShingle Chimento, L.P.
Interacting fluids generating identical, dual and phantom cosmologies
author_facet Chimento, L.P.
author_sort Chimento, L.P.
title Interacting fluids generating identical, dual and phantom cosmologies
title_short Interacting fluids generating identical, dual and phantom cosmologies
title_full Interacting fluids generating identical, dual and phantom cosmologies
title_fullStr Interacting fluids generating identical, dual and phantom cosmologies
title_full_unstemmed Interacting fluids generating identical, dual and phantom cosmologies
title_sort interacting fluids generating identical, dual and phantom cosmologies
url http://hdl.handle.net/20.500.12110/paper_03702693_v633_n1_p9_Chimento
work_keys_str_mv AT chimentolp interactingfluidsgeneratingidenticaldualandphantomcosmologies
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