We consider the interacting holographic dark energy with new infrared cutoff
(involving Hubble parameter and its derivative) in non-flat universe. In this
context, we obtain the equation of state parameter which evolutes the universe
from vacuum dark energy region towards quintessence region for particular
values of constant parameters. It is found that this model always remains
unstable against small perturbations. Further, we establish the correspondence
of this model having quintessential behavior with quintessence, tachyon,
K-essence and dilaton scalar field models. The dynamics of scalar fields and
potentials indicate accelerated expansion of the universe which is consistent
with the current observations. Finally, we discuss the validity of the
generalized second law of thermodynamics in this scenario.Comment: 21 pages, 13 figure
