A class of quintessential inflation models with parameter space
  consistent with BICEP2
  In this paper, we focus on general features of quintessential inflation which
is an effort to unify inflation and dark energy using a single scalar field. We
describe a class of models of quintessential inflation which can give rise to
the tensor to scalar ratio of perturbations consistent with recent BICEP2
measurements. The scale of inflation in the model is around the GUT scale and
there is large parameter space consistent with the recent findings.
