SUPERSYMMETRY, FINITE-TEMPERATURE AND GRAVITINO PRODUCTION IN THE EARLY UNIVERSE

We reconsider post-inflation gravitino production, in the context of h idden sector supergravity models. We discuss the possible role of supe rsymmetry breaking from finite temperature effects in enhancing the ra te for gravitino production and argue that there is no such enhancemen t. Our conclusion is based on a simple decoupling argument, which is i ndependent of temperature. We also characterize the properties of gold stino-like hydrodynamic fluctuations that arise in supersymmetric mode ls at finite temperature. We show that they cannot lead to enhanced gr avitino emission via infrared divergences. We comment on an analogy wi th axion emission from hadronic matter.