We propose a mechanism of preheating stage after inflation, using a new idea of parametrically amplified super-radiance.Highly coherent state, socksmith santa cruz characterized by macro-coherence of scalar field coupled to produced massless particle in pairs, is created by parametric resonance effects associated with field oscillation around its potential minimum, within a Hubble volume.The state is described effectively by the simple Dicke-type of super-radiance model, and super-radiant pulse is emitted within a Hubble time, justifying neglect of cosmic expansion.Produced particles are shown to interact to change their energy and momentum distribution to realize thermal hot big bang universe.
A long standing diamond painting strand en zee problem of heating after inflation may thus be solved.A new dark matter candidate produced at the emergence of thermalized universe is suggested as well.