Quasiattractor dynamics of lambda-phi^4-inflation

Understand

At high e-foldings of expansion, the inflation with the quartic potential exhibits the parametric attractor governed by the slowly running Hubble rate.

• This quasiattractor simplifies the analysis of predictions for the inhomogeneity generated by the quantum fluctuations of inflaton.
• The method reveals the connection of inflation e-folding with general parameters of preheating regime in various scenarios and observational data.