510 citations · 1.9k across the 10 of their papers we have counts for
7 papers · 1 filter
Supergravity Inflation Free from Harmful Relics
Patrick B. Greene, Kenji Kadota, Hitoshi Murayama
We present a realistic supergravity inflation model which is free from the overproduction of potentially dangerous relics in cosmology, namely moduli and gravitinos which can lead…
Dynamics of Symmetry Breaking and Tachyonic Preheating
Gary Felder, Juan Garcia-Bellido, Patrick B. Greene +3
We reconsider the old problem of the dynamics of spontaneous symmetry breaking using 3d lattice simulations, and develop a theory of tachyonic preheating, which occurs due to the s…
On the Theory of Fermionic Preheating
Patrick B. Greene, Lev Kofman
In inflationary cosmology, the particles constituting the Universe are created after inflation due to their interaction with moving inflaton field(s) in the process of preheating.…
Inflationary Reheating and Fermions
Patrick B. Greene
Coherent oscillations of the inflaton field at the end of inflation can parametrically excite fermions in much the same way that bosons are created in preheating. Although Pauli-bl…
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…
Structure of Resonance in Preheating after Inflation
Patrick Greene, Lev Kofman, Andrei Linde +1
We consider preheating in the theory , where the classical oscillating inflaton field decays into -particles and -particles. The parametric res…