Evolution of the density parameter in multidimensional cosmology
| Autor: | Heller M, Lapeta B, Szydlowski M |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Physics
Inflation (cosmology) Astrophysics::Cosmology and Extragalactic Astrophysics Cosmology General Relativity and Quantum Cosmology symbols.namesake Extra dimensions Friedmann–Lemaître–Robertson–Walker metric symbols Stress–energy tensor Field theory (psychology) Tensor Flatness problem Mathematical physics |
| Zdroj: | Physical review. D, Particles and fields. 47(2) |
| ISSN: | 0556-2821 |
| Popis: | Inflation as a dynamical effect of extra dimensions is discussed from the viewpoint of the evolution of the parameters Ω and q in the physical space. By reducing the dynamics of the models FLRW (k=±1)×T D (T D =S 1 ×... ×S 1 ) and FLRW (k=0)×S D , where FLRW denotes Friedmann, Lemaitre, Robertson, and Walker, to two dimensions it is shown that inflation need not imply Ω≃ 1 for the present time, i.e., that it does not solve the flatness problem. The energy-momentum tensor of the form T υ μ =(ρ,mρ,mρ,mρ,nρ,..., nρ) is assumed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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