2k citations · 13.2k across the 79 of their papers we have counts for
10 papers · 1 filter
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…
Theoretical Tools for Large Scale Structure
J. R. Bond, L. Kofman, D. Pogosyan +1
We review the main theoretical aspects of the structure formation paradigm which impinge upon wide angle surveys: the early universe generation of gravitational metric fluctuations…
Cosmic Web: Origin and Observables
D. Pogosyan, J. R. Bond, L. Kofman +1
Simple analytic arguments are used to understand the predominantly filamentary web in the large-scale distribution of galaxies. Numerical simulations of superclusters are performed…
A Photometric and Weak Lensing Analysis of the z=0.42 Supercluster MS0302+17
N. Kaiser, G. Wilson, G. Luppino +4
We perform a weak lensing and photometric study of the z=0.42 supercluster MS0302+17 using deep I and V band images taken with the UH8K CCD mosaic camera at the CFHT. We use archiv…
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…
Aspects of Preheating after Inflation
Lev Kofman
In inflationary cosmology, the particles constituting the Universe are created after inflation in the process of reheating due to the interaction with the oscillating inflaton fiel…
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…