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Forecasting cosmic doomsday from CMB-LSS cross-correlations.

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A broad class of dark energy models, which have been proposed in attempts at solving the cosmological constant problems, predict a late time variation of the equation of state with redshift. The variation occurs as a scalar field picks up speed on its way to negative values of the potential. The negative potential energy eventually turns the expansion into contraction and the local universe undergoes a big crunch. In this paper we show that cross-correlations of the cosmic microwave background anisotropy and matter distribution, in combination with other cosmological data, can be used to forecast the imminence of such cosmic doomsday.

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Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.69.063511

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Articles publicats en revistes (Física de la Matèria Condensada)

# metadata.dc.title[].value
Forecasting cosmic doomsday from CMB-LSS cross-correlations.