2k citations · 13.2k across the 79 of their papers we have counts for
6 papers · 2 filters
Instant Preheating
Gary Felder, Lev Kofman, Andrei Linde
We describe a new efficient mechanism of reheating. Immediately after rolling down the rapidly moving inflaton field produces particles , which may be either bosons or fermi…
Sine-Gordon Parametric Resonance
Patrick B. Greene, Lev Kofman, Alexei A. Starobinsky
We consider the instability of fluctuations in an oscillating scalar field which obeys the Sine-Gordon equation. We present simple closed-form analytic solutions describing the par…
Preheating of Fermions
Patrick B. Greene, Lev Kofman
In inflationary cosmology, the particles constituting the Universe are created after inflation in the process of reheating due to their interaction with the oscillating inflaton fi…
Cosmic strings from preheating
I. Tkachev, S. Khlebnikov, L. Kofman +1
We investigate nonthermal phase transitions that may occur after post-inflationary preheating in a simple model of a two-component scalar field with the effective potential $λ(ϕ_i^…
First-order nonthermal phase transition after preheating
S. Khlebnikov, L. Kofman, A. Linde +1
During preheating after inflation, parametric resonance rapidly generates very large fluctuations of scalar fields. In models where the inflaton field oscillates in a double-we…
Reheating and Preheating after Inflation
Lev Kofman
It is assumed that during inflation, all energy was contained in a slow-rolling inflaton field . The particles constituting the Universe are created due to interactions with the…