Fresh inflation and decoherence of super Hubble fluctuations
PHYSICAL REVIEW D - PARTICLE AND FILDS
American Physical Society
Lugar: New York; Año: 2001 vol. 64 p. 123508 - 123508
I study a stochastic approach to the recently introduced fresh inflation model for super Hubble scales. I find that the state loses its coherence at the end of the fresh inflationary period as a consequence of the damping of the interference function in the reduced density matrix. This fact should be a consequence of (a) the relative evolution of both the scale factor and the horizon and (b) the additional thermal and dissipative effects. This implies a relevant difference with respect to supercooled inflationary scenarios which require a very rapid expansion of the scale factor to give the decoherence of super Hubble fluctuations.