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Tilted Hybrid Inflation
Juan Garcia-Bellido, Andrei Linde
We propose a new version of the hybrid inflation scenario that produces a significantly tilted n>1 spectrum of curvature perturbations. This may happen in supersymmetric models whe…
Nongaussian Isocurvature Perturbations from Inflation
A. Linde, V. Mukhanov
We present a class of very simple inflationary models of two scalar fields which leads to nongaussian isothermal perturbations with "blue" spectrum, n > 1. One of the models is ins…
Prospects of Inflationary Cosmology
Andrei Linde
In this review I briefly describe the evolution of the inflationary theory from the scenario based on the idea of supercooling and expansion in the false vacuum toward the theory o…
Density Perturbations and Black Hole Formation in Hybrid Inflation
Juan Garcia-Bellido, Andrei Linde, David Wands
We investigate the recently proposed hybrid inflation models with two stages of inflation. We show that quantum fluctuations at the time corresponding to the phase transition betwe…
Recent Progress in Inflationary Cosmology
Andrei Linde
We discuss two important modifications of inflationary paradigm. Until very recently we believed that inflation automatically leads to flatness of the universe, Omega = 1. We also…