The Inflationary Wavefunction and its Initial Conditions
  We explore the effect of initial conditions on the inflationary wavefunction and their consequences for the observed spectrum of primordial fluctuations. In a class of models with a sudden transition into inflation we find that, for a reasonable set of assumptions about the reheat temperature and the number of e-foldings, it is possible for initial conditions set by a pre-inflationary epoch to have an observable effect. 
Daniel Carney, Willy Fischler, Sonia Paban and Navin Sivanandam
hep-th astro-ph.CO