395 citations · 462 across the 3 of their papers we have counts for
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Large-scale instability in interacting dark energy and dark matter fluids
Jussi Valiviita, Elisabetta Majerotto, Roy Maartens
If dark energy interacts with dark matter, this gives a new approach to the coincidence problem. But interacting dark energy models can suffer from pathologies. We consider the cas…
Measuring deviations from a cosmological constant: a field-space parameterization
Robert Crittenden, Elisabetta Majerotto, Federico Piazza
Most parameterizations of the dark energy equation of state do not reflect realistic underlying physical models. Here, we develop a relatively simple description of dark energy bas…
Supernovae type Ia data favour coupled phantom energy
Elisabetta Majerotto, Domenico Sapone, Luca Amendola
We estimate the constraints that the recent high-redshift sample of supernovae type Ia put on a phenomenological interaction between dark energy and dark matter. The interaction ca…