Warm brane inflation with an exponential potential: A consistent
  realization away from the swampland
  It has very recently been realized that coupling branes to higher dimensional
quantum gravity theories and considering the consistency of what lives on the
branes, one is able to understand whether such theories can belong either to
the swampland or to the landscape. In this regard, in the present work, we
study a warm inflation model embedded in the Randall-Sundrum braneworld
scenario. It is explicitly shown that this model belongs to the landscape by
supporting a strong dissipative regime with an inflaton steep exponential
potential. The presence of extra dimension effects from the braneworld allow
achieving this strong dissipative regime, which is shown to be both
theoretically and observationally consistent. In fact, such strong dissipation
effects, which decrease towards the end of inflation, together with the extra
dimension effect, allow the present realization to simultaneously satisfy all
previous restrictions imposed on such a model and to evade the recently
proposed swampland conjectures. The present implementation of this model, in
terms of an exponential potential for the scalar field, makes it also a
possible candidate for describing the late-time Universe in the context of a
dissipative quintessential inflation model and we discuss this possibility in
the Conclusions.
