Warming up brane-antibrane inflation
  We show that, in constructions with additional intersecting D-branes,
brane-antibrane inflation may naturally occur in a warm regime, such that
strong dissipative effects damp the inflaton's motion, greatly alleviating the
associated eta-problem. We illustrate this for D3-antiD3 inflation in flat
space with additional flavor D7-branes, where for both a Coulomb-like or a
quadratic hybrid potential a sufficient number of e-folds may be obtained for
perturbative couplings and O(10-10^4) branes. This is in clear contrast with
the corresponding cold scenarios, thus setting the stage for more realistic
constructions within fully stabilized compactifications. Such models
generically predict a negligible amount of tensor perturbations and
non-gaussianity f_NL \sim O(10).
