Structure of Resonance in Preheating after Inflation

Patrick Greene, Lev Kofman, Andrei Linde +1

We consider preheating in the theory $1/4\lambda {\varphi }^4+1/2g^2{\varphi }^2{\chi }^2$, where the classical oscillating inflaton field $\varphi$ decays into $\chi$-particles and $\varphi$-particles. The parametric res…