Warm inflation within a supersymmetric distributed mass model
  We study the dynamics and observational predictions of warm inflation within
a supersymmetric distributed mass model. This dissipative mechanism is well
described by the interactions between the inflaton and a tower of chiral
multiplets with a mass gap, such that different bosonic and fermionic fields
become light as the inflaton scans the tower during inflation. We examine
inflation for various mass distributions, analyzing in detail the dynamics and
observational predictions. We show, in particular, that warm inflation can be
consistently realized in this scenario for a broad parametric range and in
excellent agreement with the Planck legacy data. Distributed mass models can be
viewed as realizations of the landscape property of string theory, with the
mass distributions coming from the underlying spectra of the theory, which
themselves would be affected by the vacuum of the theory. We discuss the
recently proposed swampland criteria for inflation models on the landscape and
analyze the conditions under which they can be met within the distributed mass
warm inflation scenario. We demonstrate mass distribution models with a range
of consistency with the swampland criteria including cases in excellent
consistency.
