Preheating in Dirac-Born-Infeld inflation
  We study how the universe reheats following an era of chaotic
Dirac-Born-Infeld inflation, and compare the rate of particle production with
that in models based on canonical kinetic terms. Particle production occurs
through non-perturbative resonances whose structure is modified by the
nonlinearities of the Dirac-Born-Infeld action. We investigate these
modifications and show that the reheating process may be efficient. We estimate
the initial temperature of the subsequent hot, radiation-dominated phase.
