@Article{Barenboim_etal2010, author="Barenboim, G. and Fernandez-Martinez, E. and Mena, O. and Verde, L.", title="The dark side of curvature", journal="Journal of Cosmology and Astroparticle Physics", year="2010", publisher="Iop Publishing Ltd", volume="03", number="3", pages="008--17pp", optkeywords="dark energy experiments; baryon acoustic oscillations; cosmological parameters from CMBR", abstract="Geometrical tests such as the combination of the Hubble parameter H(z) and the angular diameter distance d(A)(z) can, in principle, break the degeneracy between the dark energy equation of state parameter w(z), and the spatial curvature Omega(k) in a direct, model-independent way. In practice, constraints on these quantities achievable from realistic experiments, such as those to be provided by Baryon Acoustic Oscillation (BAO) galaxy surveys in combination with CMB data, can resolve the cosmic confusion between the dark energy equation of state parameter and curvature only statistically and within a parameterized model for w(z). Combining measurements of both H(z) and d(A)(z) up to sufficiently high redshifts z similar to 2 and employing a parameterization of the redshift evolution of the dark energy equation of state are the keys to resolve the w(z) -- Omega(k) degeneracy.", optnote="ISI:000276103000026", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=465), last updated on Thu, 24 Mar 2011 15:24:50 +0000", issn="1475-7516", doi="10.1088/1475-7516/2010/03/008", opturl="http://lanl.arxiv.org/abs/0910.0252", opturl="https://doi.org/10.1088/1475-7516/2010/03/008", language="English" }