Stationary dark energy: the present universe as a global attractor
We propose a cosmological model that makes a significant step toward solving the coincidence problem of the near similarity at the present of the dark energy and dark matter components. Our cosmology has the following properties: (a) among flat and homogeneous spaces, the present universe is a globa...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
25 July 2001
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2001, Jahrgang: 64, Heft: 4 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.64.043509 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.64.043509 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.64.043509 
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| Verfasserangaben: | Luca Amendola and Domenico Tocchini-Valentini, Osservatorio Astronomico di Roma, Viale del Parco Mellini 84, 00136 Roma, Italy |
| Zusammenfassung: | We propose a cosmological model that makes a significant step toward solving the coincidence problem of the near similarity at the present of the dark energy and dark matter components. Our cosmology has the following properties: (a) among flat and homogeneous spaces, the present universe is a global attractor; all the possible initial conditions lead to the observed proportion of dark energy and dark matter; once reached, it remains fixed forever; (b) the expansion is accelerated at the present; (c) the model is consistent with the large-scale structure and microwave background data; (d) the dark energy and the dark matter densities scale similarly after equivalence and are close to within one order of magnitude. |
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| Beschreibung: | Gesehen am 17.11.2017 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.64.043509 |