Constraints on Holographic cosmologies from strong lensing systems
  We use strongly gravitationally lensed (SGL) systems to put additional
constraints on a set of holographic dark energy models. Data available in the
literature (redshift and velocity dispersion) is used to obtain the Einstein
radius and compare it with model predictions. We found that the LCDM is the
best fit to the data. Although a preliminary statistical analysis seems to
indicate that two of the holographic models studied show interesting agreement
with observations, a stringent test lead us to the result that neither of the
holographic models are competitive with the LCDM. These results highlight the
importance of Strong Lensing measurements to provide additional observational
constraints to alternative cosmological models, which are necessary to shed
some light into the dark universe.
