Article ID Journal Published Year Pages File Type
8194645 Physics Letters B 2009 5 Pages PDF
Abstract
We investigate the restrictions on the equation-of-state parameter of phantom cosmology, due to the minimum quantum gravitational requirements. We find that for all the examined wΛ(z)-parametrizations and for arbitrary phantom potentials and spatial curvature, the phantom equation-of-state parameter is not restricted at all. This is in radical contrast with the quintessence paradigm, and makes phantom cosmology more robust and capable of constituting the underlying mechanism for dark energy.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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