Interacting fluids generating identical, dual and phantom cosmologies
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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2006
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_03702693_v633_n1_p9_Chimento |
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paperaa:paper_03702693_v633_n1_p9_Chimento2023-06-12T16:47:49Z Interacting fluids generating identical, dual and phantom cosmologies Phys Lett Sect B Nucl Elem Part High-Energy Phys 2006;633(1):9-13 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. 2006 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng 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) |
| language |
Inglés |
| orig_language_str_mv |
eng |
| 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 |
Artículo Artículo publishedVersion |
| 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 |
| publishDate |
2006 |
| url |
http://hdl.handle.net/20.500.12110/paper_03702693_v633_n1_p9_Chimento |
| work_keys_str_mv |
AT chimentolp interactingfluidsgeneratingidenticaldualandphantomcosmologies |
| _version_ |
1769810336987217920 |