New take on the inflationary quintessence

The quintessence field coupled to the cosmic neutrino background (CNB) has been widely discussed as an alternative mechanism address coincidence problem. As it is well known, possible extend such models obtain quintessential inflation, that is, incorporate inflationary stage well. Taking route, one can start from well-established and successful at expense of coupling with CNB. To follow this we use a slightly reformulated model addressed in [H. Mohseni Sadjadi V. Anari, Phys Rev. D 95, 123521 (2017)]. This particular assumes ${\mathcal{Z}}_{2}$ symmetry for both scalar potential term, which then breaks down course cosmological evolution. For our discussion, however, not mandatory work. conventional particle production by oscillating inflaton (and their subsequent thermalization) remains operative. It plain see proposed construction be easily applied many inflation dark energy We issue nuggets quantum theory point view. Namely, these are considered bound states caused basically Yukawa force, arises framework linear perturbation due exchange virtual quanta between neutrinos.