On the emergence of the $$\mathbf{\Lambda }$$ΛCDM model from self-interacting Brans–Dicke theory in $$\mathbf{d= 5}$$d=5
| Autor: | Santiago Esteban Perez Bergliaffa, Luz Marina Reyes |
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| Rok vydání: | 2018 |
| Předmět: |
Physics
Physics and Astronomy (miscellaneous) 010308 nuclear & particles physics media_common.quotation_subject Structure (category theory) lcsh:Astrophysics Lambda Dynamical system 01 natural sciences Cosmology Universe General Relativity and Quantum Cosmology symbols.namesake Theoretical physics Dimensional reduction Friedmann–Lemaître–Robertson–Walker metric lcsh:QB460-466 0103 physical sciences Brans–Dicke theory symbols lcsh:QC770-798 lcsh:Nuclear and particle physics. Atomic energy. Radioactivity 010303 astronomy & astrophysics Engineering (miscellaneous) media_common |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 78, Iss 1, Pp 1-7 (2018) |
| ISSN: | 1434-6052 1434-6044 |
| DOI: | 10.1140/epjc/s10052-017-5497-y |
| Popis: | We investigate whether a self-interacting Brans–Dicke theory in $$d=5$$ without matter and with a time-dependent metric can describe, after dimensional reduction to $$d=4$$ , the FLRW model with accelerated expansion and non-relativistic matter. By rewriting the effective 4-dimensional theory as an autonomous 3-dimensional dynamical system and studying its critical points, we show that the $$\varLambda $$ CDM cosmology cannot emerge from such a model. This result suggests that a richer structure in $$d=5$$ may be needed to obtain the accelerated expansion as well as the matter content of the 4-dimensional universe. |
| Databáze: | OpenAIRE |
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