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Dark goo: Bulk viscosity as an alternative to dark energy
We present a simple (microscopic) model in which bulk viscosity plays a role in explaining the present acceleration of the universe. The effect of bulk viscosity on the Friedmann equations is to turn the pressure into an "effective" pressure containing the bulk viscosity. For a sufficientl...
Autores principales: | Gagnon, Jean-Sebastien, Lesgourgues, Julien |
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Lenguaje: | eng |
Publicado: |
2011
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1475-7516/2011/09/026 http://cds.cern.ch/record/1366447 |
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