454 citations · 3.8k across the 68 of their papers we have counts for
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astro-ph2007★ 59 cited
Affine equation of state from quintessence and k-essence fields
Claudia Quercellini, Marco Bruni, Amedeo Balbi
We explore the possibility that a scalar field with appropriate Lagrangian can mimic a perfect fluid with an affine barotropic equation of state. The latter can be thought of as a…
astro-ph2007★ 75 cited
DM: Observational constraints on unified dark matter with constant speed of sound
Amedeo Balbi, Marco Bruni, Claudia Quercellini
We consider the hypothesis that dark energy and dark matter are the two faces of a single dark component, a unified dark matter (UDM) that we assume can be modeled by the affine eq…