A Reconstruction of Quintessence Dark Energy
  With a parametric form of the equation of state parameter of dark energy, a
quintessence potential has been reconstructed. The potential is found to be a
generalization of a double exponential potential. The constraints on the
parameters are obtained by maximum likelihood analysis using observational
Hubble data, type Ia supernova data, baryon acoustic oscillation data and the
CMB shift parameter data. Th emodel shows preference towards the phantom
behaviour of dark energy.
