Non-flat Friedmann–Robertson–Walker universe with generalized holographic dark energy

The well-known cosmological parameters in the framework of interacting generalized holographic dark energy with cold dark matter in non-flat Friedmann–Robertson–Walker universe have been determined. Growth of matter density perturbation has been examined. In this context behavior of growth factor and growth index for three different interacting models have been analyzed. We find that deceleration parameter lies in accelerated expansion phase of the universe. Equation of state parameter provides quintom like nature of the universe, while Om diagnostic partially favors this behavior. It turns out that this dark energy model is stable against small perturbations for specific range of constant parameters. We also construct kinetic energy and potential of scalar field models, that explain the present cosmic acceleration. It is found that quintessence and tachyon potentials correspond to scaling solutions. We conclude that our results are consistent with current observations of cosmic acceleration.